The man with the mahogany suntan and pastel-hued Lycra cannot get enough of us – the international language of hand signals speaks volumes.
It helps that the word ‘turbo’ is universal, mind, as is the whooshing sound.
And this is the third such tête-à-tête in the past five minutes.
Sorry, it’s time to leave for one more panning shot, time to enter a Vaseline-over-the-lens, soft-focus dreamscape.
Driving along Estrada do Guincho, the road alongside the beach that appeared in the opening scene of James Bond movie On Her Majesty’s Secret Service, makes it hard not to romanticise.
Portugal’s Estoril Coast is a thing of wonder, as is the carnival of exotica that accompanies it.
None, though, have quite the gravitational pull of a 1974 BMW 2002 turbo.
This is the trailblazer that got burned, a non-homologation special that nevertheless had competition ancestry.
It also looks achingly hip, in a screwed-on spats, lairy stripes sort of way.
Looks-wise, nothing about this car is in the realms of the subtle.
However, approach the turbo expecting all hell to break loose with each exploratory prod of the accelerator, and prepare to be disabused.
There’s brimstone in here for sure, but it’s kept in check.
What impresses people is generational, and the turbocharger is a case in point.
There was a time, say, four to five decades ago, when forced induction was the new big thing.
And by ‘new’, we of course mean ‘old’, because the technology had been around for aeons.
It’s just that in the 1970s, and particularly the ’80s, a car bearing the legend ‘turbo’ somewhere in its nomenclature suddenly represented bragging rights.
It equated to a certain kind of cachet that went way beyond mere performance; it represented cutting-edge cool.
Heck, there was even an aftershave called Turbo.
The US auto industry was an early adopter of this means of boosting power.
A quarter of a century before Renault turned Formula One on its head via its ‘Yellow Teapot’, Indy was running forced induction.
The 500 polesitter in 1952 was thus equipped (it was also diesel-powered).
As for road cars, General Motors got the jump on everyone by bringing the Oldsmobile Jetfire to market in 1962.
The biggest of Detroit’s Big Three followed almost immediately with the Chevrolet Corvair Monza Spyder.
International Harvester, a brand not synonymous with speed, also produced a turbocharged variant of its Scout utility vehicle.
The machine pictured here, meanwhile, represented year zero for production models rocking forced induction in Europe.
It was the first of its kind.
What’s more, it was brought to market off the back of a motorsport campaign.
The BMWs made 200bhp at 7500rpm with the aid of 11:1 compression, and were equipped with large wheelarch extensions and spiderweb-patterned BBS alloys.
The Munich factory squad bagged the spoils – just. The margin of victory was half a point, Porsche having taken the final three rounds.
The winners were clearly on the back foot.
BMW made full of use of the broad-minded Group 5 regulations for the season ahead, the new strain of 2002 racer featuring a single KKK turbocharger mounted forwards and to the right of the slant-four, and fed by the Kugelfischer injection system via a mass of tubing that ran, tendril-like, over the cam cover.
Weighing less than 1900lb (862kg) and boasting four-wheel disc brakes behind 10in-wide wheels, the 2002 TiK (the ‘K’ standing for kompressor) performed brilliantly.
Sure, fuel consumption was horrific, and there was no intercooler, but gradual reductions of the compression ratio and constant reinforcement of the high-pressure fuel pump meant that it stayed together long enough to give Dieter Quester four outright victories.
BMW beat Porsche to the 1969 constructors’ gong in its class, while Quester was Division 3 champion in the drivers’ standings.
However, rule changes for 1970 heralded BMW’s exit, although ’02s would continue to be fielded – with varying displacements, and in carburetted and injected forms – by Alpina.
BMW also flirted with rallying ’02s, memorably with a 16-valve head.
While the turbo programme had proven to be short-lived, lessons had been learned.
For starters, at 1.0 to 1.2bar, the rugged ‘four’ would reliably deliver 280bhp at 7200rpm.
It was also surprisingly flexible, all things being relative, and uncommonly quiet at high speed.
As much as 324bhp was available with the boost turned all the way up, but only until the loud bang that preceded pieces of shrapnel escaping in all directions.
All of this expertise with forced induction wasn’t about to go to waste, either: witness BMW’s future campaigns in Formula One, most successfully with Brabham.
It also led the marque to conclude that a turbocharged variant would add a little bit of fizz to a model that had been in production in various guises since 1966.
It is worth pointing out at this juncture that there had already been a turbocharged 2002 road car before, when legendary California-based Czech dealer and race entrant Vasek Polak offered to equip customers’ tii-spec cars with an Eberspacher turbo from 1972.
The factory’s own version, however, looked decidedly spicy by way of comparison. This was no Q-car.
Unveiled at Frankfurt in May 1973, the 2002 turbo bristled with showy intent, and deliberately so.
The five-bearing four-banger retained its familiar 1990cc displacement, but the compression was lowered to 8.5:1 (the tii was 9.5) and plumbing for the turbocharger easily filled the underbonnet space.
Aside from the engine, most modifications were made to handle the extra power.
From the enlarged fuel tank to the bigger radiator and oil cooler, there were significant upgrades.
The car’s suspension followed the usual BMW practice of MacPherson front struts and semi-trailing arms at the rear, but here there were stout anti-roll bars and stiffer coil springs at each end, plus trick Bilstein dampers out back.
The changes didn’t end there. The rear axle carried a limited-slip diff and a 3.36:1 final-drive ratio (the 2002tii’s was 3.64); the front brake discs were the same as on the ti and tii, but packed four-piston calipers, while the rear drums were larger.
Then there was the physical makeover: the fat arches, front spoiler and go-faster stripes left you in no doubt that this was a factory hot rod.
It was ludicrously quick by the standards of the day, its maker claiming a top speed of 131mph and 0-60mph in less than 7 secs being possible, traction permitting.
This was searing stuff, the sort of figures that most sports cars of the day could only dream of realising.
There was, however, a small problem that did for the 2002 turbo, and it was one that BMW could hardly have foreseen: the car’s introduction coincided with a fuel crisis.
Demand for anything remotely profligate with petrol suddenly evaporated, and the turbo was capable of 19.5mpg at best.
Speed was suddenly deemed anti-social and limits were lowered across the board, and BMW was pilloried in certain sections of the media for being so out of step with public sentiment.
As a result, production lasted a mere 10 months. All told, 1672 turbos were made.
And in front of us today is one of them, resplendent in Polaris silver with the obligatory blue, violet and red racing stripes, and Mahle wheels.
BMW only ever offered turbos in two colours, the other being Chamonix white. Not that there weren’t any discrepancies between cars, not least in terms of logos and lettering.
The reverse-script ‘turbo’ decal eblazoned on the glassfibre front spoiler, for example, caused consternation in fuel crisis-riven Germany and was ultimately deleted.
Up close, the turbo looks purposeful but cohesive in an oh-so-’70s sort of way, and the black rubber rear spoiler completes the ensemble.
Inside, it’s a riot of vinyl with little in the way of go-go frippery to match the outer dazzle, save the blood-red fascia.
That, and the central instrument cluster that houses the clock and VDO boost gauge.
The Rentrop seats are ultra-comfy, the lack of meaningful ventilation in contrast letting the side down a little.
Fire it up and the enduring ‘four’ isn’t overly tuneful, nor is it particularly loud. The surprise is how docile it is when not pressed.
It idles happily at 1100rpm, but accelerating hard from a standstill isn’t the order of the day.
This particular example is period-perfect; it’s a driver, too, but our location precludes enthusiastic acceleration.
Past experience of the model, however, informs you that the turbo is at its best once up and running.
The four-speed Getrag gearbox doesn’t like to be rushed, but it is difficult to make a hash of changes (a five-speed unit was also available).
In town, the engine proves smooth and tractable but a bit gutless in the lower reaches.
Once the road and conditions permit, however, it will rocket past 60mph before you have changed up from second to third.
There isn’t, though, the harum-scarum turbo blitz you might expect.
The BMW isn’t unruly, but you’re aware of the turbo spooling up, particularly as you nudge 4000rpm and it keeps pulling.
That said, back off, and with the throttle closed for a few seconds but with the engine still above this magic figure, there is a pronounced hesitancy – lag – before it picks up from where it left off.
Once it does, the proceeding surge isn’t violent – it has ‘only’ 170bhp, let’s not forget.
Just don’t expect the sort of all-or-nothing, to-infinity-and-beyond shenanigans of most early turbo cars.
This car does have personality. It makes you smile, but what impresses most is the fact that it still feels fast.
Sure, there are umpteen latter-day hatchbacks that would thrash it, but here you are not desensitised from what is happening.
The most impressive part is the car’s smooth top-end acceleration; it isn’t buzzy, and there’s a lack of fuss at high-ish cruising speeds.
The worm-and-roller steering resolutely chains it to ye olden times, but it has sufficient feel when it matters.
The BMW also corners much as you remember, feeling stable under braking with a slight tendency to tuck into bends if power is reduced.
Read any contemporary report and they are full of stories of derring-do and driving the turbo on its lock-stops.
Somewhere south of ten-tenths, and in the here and now, we didn’t get to find out.
The steering is relatively heavy, and you need to dutifully build the boost in second gear and power out of a tight second-gear corner to get so much as a chirrup out of the rear tyres.
The lack of drama could, however, be down to the paucity of talent on the part of the driver.
Either way, the ’02 feels nicely balanced and faithful with it.
The turbocharger also renders the BMW well-suited to motorway cruising, and it is good-natured at 70mph in top. You can hold a conversation.
On the debit side, the ride is on the firm side of unyielding, which rather goes with the territory, but it is still miles better than many recent sports saloons, for which meaningful suspension travel is apparently an optional extra.
The disc/drum brakes work well, too, with excellent pedal feel.
Even this, the briefest of catch-ups, serves as a reminder of how the 2002 turbo is a born entertainer, but one that isn’t overpowering.
You don’t need to stay on top of it all the time; you can relax.
It has a few rough edges, but it is hard not to emerge smitten by what constitutes a rare failure in the Munich marque’s canon.
That said, failure is a relative term.
The turbo succeeded on its own merits, but the timing of its arrival was comically awful.
You could also argue the world was perhaps not ready for a 2002 that cost almost twice as much as a tii.
What is telling is that, with the 3 Series due to arrive in 1975, the ’02 in its many flavours was already on its way out.
The turbo represented one final roll-out party favour. It just goes to show that glowing embers burn hottest.
Images: Bernardo Lucio
BMW 2002 turbo
- Sold/number built 1973-’74/1672
- Construction steel monocoque
- Engine iron-block, alloy-head, sohc 1990cc ‘four’, with KKK turbocharger and Kugelfischer mechanical fuel injection
- Max power 170bhp @ 5800rpm
- Max torque 178lb ft @ 4000rpm
- Transmission four/five-speed manual, RWD
- Suspension independent, at front by MacPherson struts rear semi-trailing arms, coils, telescopic dampers; anti-roll bar f/r
- Steering worm and roller
- Brakes discs front, drums rear, with servo
- Length 13ft 10in (4219mm)
- Width 5ft 6¾in (1621mm)
- Height 4ft 7½in (1410mm)
- Wheelbase 8ft 2½in (2499mm)
- Weight 2380lb (1034kg)
- 0-60mph 7.5 secs
- Top speed 131mph
- Mpg 19.5
- Price new DM18,720
- Price now £75-150,000*
*Prices correct at date of original publication
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