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A closer look at the 2015 BMW M3 sedan and M4 coupe: Turbocharged performance is gonna cost you

By the time the 2015 BMW M3 sedan and M4 coupe were revealed at the Detroit auto show, we already knew a lot about what to expect from the Roundel's newest generation of high-performance driving machines. It was no secret, for example, that the new M3 sedan and its two-door counterpart, the M4, will be down two cylinders and a few hundred pounds from their predecessors. Now that we've had a chance to get a look at the cars in production trim, here's a closer look at what's under all the aggressively vented fascias, spoilers and M badges.

2013 Audi R8 Facelift arrives (+video)

Audi has given the R8 a facelift for 2013 with cosmetic tweaks, a new 7-speed S tronic dual clutch and the Audi R8 V10 Plus. Audi’s answer to the Porsche 911 has been with us for six years and has grown to a complete range of supercars with four rings, including V8 and V10 versions as Spyder or Coupe and an R8 GT. But now its time for a complete refresh with the arrival of the 2013 Audi R8 Facelift.

Vauxhall Corsa – 2010 Engine and Economy upgrades

Vauxhall has made performance and economy changes to the Corsa for 2010 Vauxhall (and for that matter, Opel) has been having a play with the Corsa for 2010. But if you’re looking hard at the picture at the top to see what they’ve done to the car, don’t bother. There are no styling changes, instead this is about improving performance, reducing consumption and tweaking the handling.