Motoring numbers

10,000: This is the number of deer killed on Scotland's roads every year, in part due to a explosion in the country's red deer population. It has tripled over the last four decades to 400,000.

61: The age Bristol Cars will be this year. The British sports car maker started producing cars in 1946. Its latest car is the £350,000 Fighter T.

8: How much less thirsty the new BMW M3 is, in percentage terms, compared to the previous version. Its combined-cycle fuel consumption is now 22.8mpg. The engine is 15kg lighter, too.

1.5: The average volume of sweat, in litres, that a driver in a World Rally Championship race in a hot country loses each hour behind the wheel.