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

Driven: BMW 5 Series GT

It's an illustration of the place London has become that it's typically possible to park brand new or exotic cars on an average street and be met with studied indifference by the average passer by. So why, during a week of driving a BMW 5 Series GT, were we made to feel so conspicuous? Every time we parked in a busy area, at least one stranger felt the need to remark, usually to tell us how ugly they thought it was.

Tesla Model S goes up in price

The electric Tesla Model S – which won’t arrive in the UK until at least late in 2013 – is going up in price in the US and gets a spec change. The Tesla Model S is perhaps, just perhaps, the only really credible electric car so far; a luxury ‘Sports’ saloon car that offers range almost comparable to an ICE car and, it seems, prices that aren’t an awful lot different. That makes it a far more appealing prospect as a replacement for an ICE car than anything we’ve previously seen.

Lamborghini Aventador J at 2012 Geneva motor show

There maybe other Italian sports car manufacturers looking to hog the limelight at the 2012 Geneva motor show (and Ferrari and its 730bhp F12 is one of them) but Lamborghini will vie for attention with the Aventador J. A two-seat, open top speedster based on the Aventador LP700-4, it has some intriguing bits of carbonfibre tech and highly individual design. Named 'J' after the FIA’s Appendix J that governs the tech spec of race cars in certain classes, it’s proper bedroom wall material – but little boys and girls are unlikely to ever see it on the road as it’s a one-off and will go to a lucky owner after its appearance at Geneva.