Sierra 5957 Alternators / Alternator-68amp 3-wire V-belt on 2040-parts.com

On video: the world's fastest truck

This is one lorry that you wouldn't get stuck behind on the motorway - Shockwave is the world's fastest jet-powered truck, with a top speed of almost 400mph. Based on a Peterbilt Semi, the four-ton beast generates 36,000hp and can cover quarter of a mile in six and a half seconds. Power comes from three Pratt & Whitney J34-48 jet engines, each of which produces 12,000hp.

Tunnels get F1 ace Räikkönen buzzing

FERRARI's Formula One aces Fernando Alonso and Kimi Räikkönen put pleasure before business at the Belgian Grand Prix weekend, taking to a specially-made track in a hyper-exclusive 458 Speciale in a test of driving excitement. The stars travelled down the road from the famous Spa circuit to an event hosted by Shell, Ferrari's fuels and lubricants partner, where a 1.2km circuit built for excitement had been put together, featuring a tunnel full of laser lighting, a simulated winter corner with authentic whirling snow, and an F1-style starting grid. The tunnel flicked Kimi's switch more than any other part of the track, with the telemetry showing a spike in excitement levels as he hit the power through the multi-coloured lasers and smoke.

Fiat Doblo 2010 – the details

The Fiat Doblo 2010 goes on sale this month Fiat’s Postman Pat-mobile – the Fiat Doblo – has been with us for a decade, in which time Fiat have managed to shift an impressive 1 million units. Which ain’t bad for an ugly box on wheels that has all the aesthetic joy of a Monk Fish. But just like the Monk Fish, the real deal is at the back.