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

Tesla Roadster 2.5 breaks cover

Perhaps feeling a bit of chutzpah after a wildly successful stock offering this week, Tesla is demonstrating on Thursday that it still has an eye toward product, revealing the updated Tesla Roadster. And it's available for order now. Called the Roadster 2.5, the car features minor enhancements, including a new front fascia with different diffuser vents (the change is actually apparent) and new rear diffuser.

Citroen GT (GTbyCitroen Concept) – in the flesh

The GTbyCitroen Concept (Citroen GT) is making a Summer tour of Motor Events in Europe Which all fits very well with Citroen’s desire to reposition itself as a Premium Brand. The new range of Citroen DS models is part of that way forward, and Citroen obviously believes – probably quite rightly – that the Citroen GT is potentially a great ‘Halo’ model for the company. So Citroen are going to spend the Summer schmoozing with the Citroen GT at some high profile events.

New Mercedes S 63 AMG costs from £119,565

New Mercedes S 63 AMG (pictured) costs from £119,565 The arrival of the new Mercedes S-Class in May saw MB move their range topper on properly for the first time in almost a decade, but with UK prices staring from £62,650 for the S 350 BlueTEC it wasn’t going to be on most people’s shopping list. And if you can’t afford Mercedes’ entry-level S-Class there’s no hope of affording the new S63 AMG, which Mercedes has revealed will cost an eye-watering £120k when it arrives in the UK in November. To be entirely fair, the new S63 is an awesome car with immense performance (which would be even more impressive if Mercedes endowed it with 4WD, as they do in other markets) with its 5.5 litre bi-turbo V8 developing 577bhp and getting the S63 to 62mph in 4.4 seconds.