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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.

Caterham Supersport R extends Caterham 7 range

Caterham has added the Supersport R to its range of ’7′ models with a 2.0 litre Duratec Ford engine delivering 180bhp. In the meantime, Caterham’s core road car business is the old Lotus 7 range of Caterhams, so it makes sense to keep that more appealing and relevant until new cars start to arrive, so we get the Caterham Supersport R as an addition to the range to slot in between the Supersport and the Superlight models. The Supersport R gets a Ford Duratec 2.0 litre engine which produces 180bhp, which doesn’t sound a huge amount, but when you consider the Supersport R weighs in at just 535kg it starts to look plenty.

Changes coming to LA Auto Show

The toughest opponent for the Greater Los Angeles Auto Show has never been the weather, which is always perfect, nor the location, in car-crazed Southern California. It's been the calendar. After decades of being run on the exact same dates as the larger and more globally recognized Detroit auto show, LA finally stepped out of the shadow of the Motor City several years ago and grabbed its own spotlight -- in November.