It's party time for Ford Motor Co. and Vauxhall - General Motors' British brand - as they both celebrate their centenaries this year.
But circumstances alter cases, as the English say. As well as parties for staff, Ford of Britain is hosting the biggest Ford public celebration outside the USA by sponsoring next month's Goodwood Festival of Speed (July 11-19).
Ford plans to mount huge displays and stage run-outs by notable cars, including the GT40s that scored first, second and third at Le Mans in 1966. Top Detroit figures are set to attend.
Ford won't say how much it's all costing, but experienced sources put the price at E2 million.
By contrast, Vauxhall has organized a London dinner, two factory parties, a low-key road show with historic cars, and has commissioned a book.
Insiders at Vauxhall's base in Luton murmur of hard times and sensible restraint, and again the cost is secret. But the informed estimate is E200,000 - one-tenth of Ford's expenditure.