Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Revealed: Mercedes-Benz CL63 AMG

Less than a month after revealing a raft of changes to standard versions of its range-topping coupe, Mercedes-Benz has lifted the veil on a more powerful and significantly more economical CL63 AMG. Set for U.S. sale from November, the up-market performance coupe receives a series of mid-life styling tweaks, including larger headlamps, a restyled grille, more heavily contoured hood and re-profiled bumpers--all aimed at providing the CL63 AMG with added appeal against stiff competition from the likes of the Bentley Continental GT and the newly refreshed Aston Martin DB9.

Hyundai Veloster Midship concept shows what the Veloster could be

The Hyundai Veloster Midship at the Busan Motor Show The Hyundai Veloster is actually a perfectly capable – if slightly quirky - sports car, which promises much but doesn’t actually deliver in terms of performance. In fact, when we  reviewed the Hyundai Veloster a couple of years ago with its 1.6 litre petrol engine, we wondered if Hyundai would have been better giving the Veloster a diesel lump instead, which would at least have made its paucity of power less of a problem with more torque to play with. And the Veloster Turbo isn’t a huge amount better, only offering 184 bhp and taking 8.4 seconds to get to 62mph; figures we would have expected from the base Veloster if it were to be a properly credible competitor in the sector.

Porsche 918 Spyder caught high-altitude testing

The Porsche 918 Spyder first broke cover as a concept at the 2010 Geneva motor show. Since then, we've seen it again and again at various auto shows and track events. Now it's testing at high altitudes in Keystone, Colo.