Motoring numbers

634,390: total of registered Land Rovers on Britain's roads today, along with 271,796 Jaguars - that's more than 900,000 existing UK customers for potential buyers of the brands.

30: It's 30 years since the Porsche 928 was revealed. The coupé was voted 1977 European Car of the Year - the only sports car ever to hold the title.

764: Number of second-hand MINIs ordered during a recent record-breaking 'Cherished Weekend' promotion run by the company.

15: General Motors' boffins claim that in 15 years, alternative fuel vehicles will outnumber those powered by fossil fuels.