1971 Kawasaki 350 Bighorn Oem Regulator on 2040-parts.com

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.

Celebrate 40 years of Nissan's Z car with our special Web-zine

It's the 40th anniversary of Nissan's iconic Z car. You can join the celebration with a special-edition Web-zine created by the editors of AutoWeek. A great historical compilation from the AW archives, this special issue will take you from the Fairlady to the latest 370Z, with the race cars in between.

Abarth 500C EsseEsse & Punto Evo EsseEsse at Paris

The Abarth 500c EsseEsse arrives at Paris Abarth do a very good job of warming up the odd Fiat or two (well, they have been doing it for quite a long time), the most recent offerings being the Abarth 500C and the Abarth Punto Evo which we saw when we trollied off to Goodwood in July. But there is a second flavour of Abarth. Best to think of it as the ‘Chilli’ Abarth; Abarth call it EsseEsse.