Garrett Ar/60 60 Trim Twin Scroll Turbo •new!!• 6.4l Diesel ***last Price Drop** on 2040-parts.com

Guess Jethro's lap time and win a £550 Suunto watch

CAR journo Jethro Bovingdon drove the Lotus Exige 260 Cup around the track at Lotus HQ in Hethel, Norfolk, for a story in the new August 2010 issue of CAR Magazine, out on 21 July. But how fast was he in the latest track-day tool of choice?If you can correctly guess Jethro's lap time, you could win this brilliant Suunto Elementum Ventus watch. It's worth £550 and is yours to keep if you come up with the nearest time to Jethro's fastest lap.The 260 Cup is a £45,950 slice of Lotus: a beefed-up, supercharged and super light at 890kg coupé version of the Elise, honed and fettled for track action.

Caterham AeroSeven Concept previews new Caterham in 2014

The Caterham AeroSeven Concept (pictured) previews a new Caterham in 2014 It’s a new Caterham, but a new Caterham that signals not only a new model for 2014, but a new design direction as Caterham moves towards the fruits of their alliance with Renault on the Alpine project. The Caterham AeroSeven isn’t a look at Caterham’s version of the Renault Alpine project, but a new track-inspired road car designed in a collaboration between Caterham Technology and Innovation, Caterham F1 and Caterham Cars. The new Aero Seven’s underpinnings come from a revised version of the Seven CSR’s chassis with pushrod suspension at the front and full IRS with new dampers and springs.

New techniques cut cost of carbon fiber

Carbon fiber, once so costly that it was the preferred material only for fighter planes and supercars, is catching the attention of weight-conscious automakers. Carbon fiber's cost is falling dramatically, thanks to production advances that let suppliers speed the material's finicky, and costly, curing process. One technological breakthrough that makes carbon-fiber auto parts more affordable may come from a process used to make carbon-fiber golf clubs.