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

BMW 4-series Convertible (2013) first official pictures

By Ollie Kew First Official Pictures 13 October 2013 20:30 This is the new BMW 4-series Convertible, which goes on UK sale in early 2014 priced from £36,675. Although it's got a new name, the 4-series Convertible deviates little from the recipe of its predecessor, the 3-series Convertible. It's still a two-door, four-seater set-up, and the roof is a three-piece folding hard-top contraption.

Porsche Cayenne gets more power

Porsche Cayenne Turbo - Powerkit adds 40bhp A lack of power is not something you would normally complain about with the Porsche Cayenne Turbo. After all, despite weighing roughly the same as a grouse moor (unlike the previous generation which weighed slightly more than a small moon), it’s 500bhp V8 moves this SUV to 60mph in a chunk less than 5 seconds. But power under the bonnet is addictive, and even if you have 500bhp under your right foot there will always be occasions when you wish you had just that bit more.

Readers chat it up live with AW associate editor Jon Wong

For those who have ever stared longingly at a Mazda RX-8, or who love the symphony of a Honda four-cylinder engine turning at 200 rpm short of the redline and the tactile joy of the shifter sliding flawlessly from gear to gear, you have a friend in AutoWeek associate editor Jon Wong. On Friday, readers took the opportunity for a virtual mind meld, as Jon fielded questions in an online chat at 3:30 p.m. Eastern.