Wilwood Dynalite Rayburn Caliper Dirt Late Model 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.

A taxing situation: Miles driven or fuel consumed, that is the question

OPENING SCENE: Inside a modern-day classroom. Teacher stands behind a desk addressing the room. TEACHER: OK, boys and girls, today we're working on our C-words.

French government vows Renault reform after meeting with Ghosn

The French government will see to it that the individuals responsible for the now debunked Renault SA espionage affair are dealt with, the Finance and Industry ministers said in a statement. "The ministers underscored that they will pay close attention to organizational reform and individual responsibility (at Renault) based on the result of the audit," Finance minister Christine Lagarde and Industry Minister Eric Besson said in a joint statement after meeting with Renault CEO Carlos Ghosn on Thursday. The French state, which owns 15 percent of Renault, has called for a thorough investigation into discredited claims that three Renault executives were spying on the carmaker, possibly for a foreign government.