Cardone Industries 54-73130 on 2040-parts.com

BMW's new M engine needs a better voice

BMW's M division claims its new twin-turbocharged 3.0-liter inline six-cylinder engine is every bit as good -- if not better -- than the glorious, naturally aspirated 4.0-liter V8 powerplant it replaces in the new M3 sedan and M4 coupe. The figures are certainly impressive. They say it kicks out 424 hp and more than 25 percent extra torque, with what is described as significantly more than 369 lb-ft below 2,000 rpm.

Infographic: How much clay do Ford’s design studios use each year?

Ford has offered an insight into its clay modeling processes with a series of videos and an infographic that charts the process involved in turning a designer's sketch into a full-size model. The infographic uses data taken from all of Ford's global design studios in 2012 to give an idea of how much clay is used in a year, plus how much paint and di-noc film is used to cover each model. Ford has also released a video that gives a behind-the-scenes look at the firm's clay modeling studio in Merkenich, Germany, including interviews with members of the modeling team.

Dinner with Bob Lutz: Looking back at nearly 50 years in the car business

Bob Lutz is retiring--again. He has tried this twice before: at Chrysler in 1998 and with his abortive exit from General Motors last year. But this time, at age 78, it may stick, even for the car guy who has operated at the industry's highest levels since the early 1970s.