This right-hand-drive 1960 Austin-Healey 3000 – modified in the 1960s for rally use – has been with one owner since 1973, but has been laid up since 1979 and is estimated to make a tempting £8-10,000 when it is sold at Barons on 17 April.
Another rally car from the BMC stable is the MGC GT, which has historic rally history and FIA papers and is expected to make £5-7000.
A registration number, however, is set to upstage all the classics at Sandown Park. 1 NOR is said to have been gifted to Lord Romsey (Norton Louis Philip Knatchbull) on his 21st birthday by his father, Lord Louis Mountbatten of Burma, and is valued at £25-30,000.
It is one of just 14 registration numbers so far consigned to the sale. Others include FIG 3350 (£500-£600) and 5349 TR (£1,200-£1,500).
Other car consignments are a Ferrari 308GTB that just emerged from storage and will require re-commissioning, but could be a bargain at £13-15000.
There is also a recently restored 1964 Mercedes-Benz 220 SEb Pillarless coupe (£14-16,000) and a 1983 MkI Volkswagen Golf GTi daily driver said to be "unmolested, genuine, original and exceptional". It is said to have all its original panels and no welding and is reckoned to be worth £7-8000.