Honda Passport C70 Speedometer Cable on 2040-parts.com

Study finds teen drivers need more time in adverse conditions

Practice might make perfect, but not if the drills never change. In a study organized by the AAA Foundation for Traffic Study and the University of North Carolina Highway Safety Research Center, participating teen drivers averaged about an hour and a half of supervised driving each week--mostly on routine trips along the same roads. At the end of the year-long study, 47 percent of parents said there was at least one driving condition they felt their student wasn't prepared to handle.

2015 BMW M4 Convertible debuts: drop-top fun priced from $73,425

The 2015 BMW M4 Convertible made its official debut at the New York auto show yesterday. While the details of the high-octane hardtop didn't exactly catch us off-guard (see our full breakdown here), we now know how much it'll cost to feel the wind in your hair as you launch from 0-60 mph in 4.4 seconds: $73,425, to start. Complete pricing will be available closer to the M4 Convertible's sale date, which is “late summer” 2014, according to BMW.

Ferrari posts huge profits - by building fewer cars

AP Ferrari today announced an 8% jump in trading profits to €363.5 million in 2013 - despite selling 5% fewer cars. It's all part of the supercar maker's planned reduction in supply to keep values and demand for Ferraris rock-solid, Maranello reported. Turnover and profit all surpassed previous records, despite the reduction in the number of cars built.