Afe Power 46-70192 Differential Cover on 2040-parts.com

Four-door BMW 4-series Gran Coupe revealed in renderings?

Another day, another upcoming car revealed thanks to a leaked patent filing -- and another BMW model variant to memorize: f30post.com has renderings of what looks to be the four-door BMW 4-series Gran Coupe, originally posted at the Chinese-language site autohome.com.cn. No, your eyes do not deceive you, nor are you going crazy. This is, or at least appears to be, a four-door version of the car that BMW created as the dedicated two-door replacement for the now-discontinued 3-series coupe.

Porsche Boxster S Black Edition (2011) at 2011 Geneva motor show

Another week, and rather than just another Porsche, it’s another Black Edition Porsche special – this is the Porsche Boxster S Black Edition. There’s more power and more standard kit, but the price is higher too. Just 987 will ever be built, in a nod to Porsche’s internal numerical designation for the Boxster.

Driven: Mazda RX-8

The two most obvious elements of its unusual make-up are its rotary engine and rear-hinged rear doors with integral B-pillars. What became clear during our week with the RX-8 was how these two aspects of its design form the basis of many other unique qualities... Sports coupe and GT coupe The rotary engine of the RX-8 has a very distinct power delivery that is a defining part of the car's character, but it is also a very small lump of metal compared to a similarly powerful conventional reciprocating piston engine, enabling more of the car's overall length to be devoted to cabin space.