Camaro/firebird Lt1 V8 24" O2 Sensor Extension Harness 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.

Senate releases $350 billion more in bailout money

The Senate voted Thursday to release a second round of $350 billion in federal aid to rescue financial institutions. The money could be the source of additional loans to automakers, auto finance companies and perhaps suppliers. An earlier allocation of $350 billion funded the first installments of emergency loans to General Motors and Chrysler LLC.

Hood-ornament quiz--the answers

Were you able to separate the Cadillac from the Packard in our hood-ornaments challenge in the April 5 issue of AutoWeek? We wanted to know whether you could identify eight classic cars solely by their hood ornaments. Here's the place to confirm your car-knowledge prowess, or to recalibrate your hood-ornament history.