Mitchell Rpm Indicator P/n D1-112-5023 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.

Mazda to use regen brakes to boost fuel economy 5 to 10 percent

Mazda is adding a fuel-saving technology that harnesses wasted brake energy in the redesigned Mazda6 sedan due early next year. The approach uses regenerative braking to convert kinetic energy into electricity that is stored in a capacitor. The car later taps that capacitor to power the fuel pump, lights, audio, air conditioning and transmission and engine control systems.

Penalty points separate good girls and bad boys

MORE THAN 30,000 male drivers aged 17-20 have anything up to six penalty points on their driving licences. There is also a wide gulf between offending rates for young men and young women, with women drivers aged 20 or under only recording 9,758 instances of attracting three to six points. As many as 1,210 17-year-old males have accrued up to six points, with 358 currently having the maximum permissible six.