Driving the boundaries of realism

Driving through the rain-drenched streets of Shanghai in an Aston Martin DB4 at breakneck speeds, with the neon signs of shops blurring as you pass by, is one of the great thrills in life - even if it is only virtual.

Video game development has made tremendous graphical strides in the last four decades and nowhere is this more pronounced than in driving simulations.

Games such as Project Gotham Racing 4, Ferrari Challenge and Gran Turismo 5 offer photo-real cars with simulated handling physics, being thrown about in high-definition worlds, which often recreate real cities in astonishing detail.