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

Tesla Model S outsells luxury competition

As if Tesla needed any more good news this month, first-quarter sales are in and the electric Model S outsold the Mercedes S-class, Audi A8 and BMW 7-series, according to “CNN Money.” In the first three months of 2013, Tesla sold 4,750 sedans while Mercedes sold 3,077 of the S-class, BMW sold 2,338 of the 7-series and Audi sent 1,462 A8s out of the dealership. The Model S does have its sticker price going for it. The base model can be had for $69,900 -- possibly less with tax incentives -- while the cheapest S-class goes for $93,255, the 7-series for $74,525 and the A8 for $73,095.

First Sight: Mercedes-AMG GT

“If I was to buy any sports car that wasn't a Mercedes, it'd be a Porsche 911,” says Mercedes' head of design, Gorden Wagener. “But when you see the two cars together, we think ours has the edge.” He's talking about the new Mercedes-AMG GT, a front-mid engined, two-seater sports car that's unashamedly aimed at higher-end 911s, and we've come to see it at Mercedes' Sindelfingen studio.  The GT replaces the larger SLS, and is seen by Wagener as the best example yet of his 'sensual purity' design philosophy: “The SLS is very much [he gestures] line, line with a surface in between. With the GT we started with the surface and worked to refine and reduce the number of lines.” Elements of the SLS's platform have been carried over, so the GT measures the same 1,939mm wide.

Trident Iceni 6.6 litre diesel V8 at Salon Prive

Salon Prive 2012 will play host to the Trident Iceni Grand Tourer – a custom built 6.6 litre V8 diesel-powered supercar – next month. Diesel engines and high performance cars – however good diesel engines have now become – are not synonymous with supercars. But no one seems to have told Norfolk car makers Trident.