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

Bentley Continental (2012): new gearbox, Speed specs

Bentley is cutting the average CO2 output across its range, but don't worry; they're not cheating with a flying-B-badged VW Up (take note, Aston Martin-Toyota). Instead, Bentley's fitting a new gearbox to all new two-door Continental models. Meanwhile, we've got all the details on the fastest Bentley road car ever: the new Continental GT Speed.

NHTSA studies Toyota Corolla airbags

Federal regulators are investigating a motorist's report that the airbags in his 2008 Toyota Corolla failed to deploy when the vehicle hit a deer at 55 mph. The National Highway Traffic Safety Administration said this week that the airbag probe could affect as many as 170,000 vehicles. The Corolla has been Toyota's second-best selling model, after the Camry, in recent years.

New Jaguar XJR will see the end of the XJ SuperSport

The launch of the new 2013 Jaguar XJR at the New York Auto Show this week heralds the end of the line for Jaguar’s other Supercharged V8 XJ – the SuperSport. With a much more fulsome 542bhp, some very ‘Jaguar’ go-faster bits, some proper fettling to make the steering, gearbox and suspension focus more on the drive without making a mess of the ride and altogether more dynamism in prospect than the SuperSport, we’d assumed Jaguar were making the XJR the performance pinnacle of the XJ range and leaving the SuperSport in place as the ‘luxury’ alternative. With that thought in mind we’d expected to see Jaguar push the price of the new XJR up towards the XJ Ultimate (which costs £121,000), so count us gobsmacked when Jaguar revealed the new XJR will cost from £92,335 – just £500 more than the SuperSport.