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

The AutoWeek list: Foolish cars we should never have bought, but did

2001 Pontiac Aztek Our take: The most recent black eye to the General's style department. A car equivalent of the ubiquitous camel design, put together by a committee whose members obviously didn't speak to each other. 1999 Isuzu VehiCROSS Our take: We don't doubt this Japanese ute's off-road prowess, but its goggle-eye front and corrugated steel door ripples were enormous design miscues.

Mazda MX-5 gets a spruce up

The Mazda MX-5 is one of our favourite fun cars. It evokes all the joy of the cracking little British Roadsters of the past, like Austin Healeys, Triumph TRs, Lotus Elans and even older Morgans and XK Jags. It does it by being simple, efficient and fun to drive.

Lamborghini Aventador Roadster: Easy remove roof (video)

We have video of the new Lamborghini Aventador Roadster at a private reveal in Miami showing that the roof really is easy to remove. It’s a great-looking car – even if it’s more Targa than Roadster – and comes with the same 6.5 litre V12 and 0-62mph of just 3.0 seconds as the coupe. More importantly, especially if you get caught in a shower, the Aventador Roadster actually has a roof that can be removed and re-fitted in quick sticks.