...and Audi's 20 valves
Multi-valve heads are in fashion these days. Turbocharging is passé and supercharging has not yet been taken up by enough manufacturers. No, the way to increased horsepower and torque, according…

Bantam Midget Model racer
Perfect for any desk or shelf, this beautiful model is hand-made from aluminium, wood and leather. It even used original 1930s blueprints of the scale-model racers. £320

Mechanical cufflinks
Rose gold (left), £220, Rhodium (right), £120

Speed Birds book
An unforgettable story that explains how cars work, by Alan Snow, £14.99

Signed steering wheels
Nigel Mansell (left) £299.95, Kimi Räikkönen (right) £199.95