National 352541 Engine Timing Cover Seal on 2040-parts.com

BMW previews new M4

BMW has revealed several retro-fit enhancements for the new 4-series coupe, part of its M-Performance line of options. In the process the company has provided the first clues to its upcoming M4's appearance; the M4 will replace the just-discontinued BMW M3, and sources tell Autoweek the new performance coupe will make its world debut at the Detroit auto show next January. The performance package consists of an aggressive aero kit, various interior trim upgrades and suspension modifications.

Rhonda Renaissance Part 2: Paint vs. vinyl

We dispensed with the basics in Part 1 on Monday: There's a 1963 Pontiac StarChief in the parking garage of Autoweek HQ. It needs of a new coat of something for the summer, so let's explore some of the options confronting today's refinish customers, where candy paint is no longer the only game in town. Let's start with vinyl wraps: We've seen them, felt them and picked at them at shows and in shops.

One Lap of the Web: Jay Leno does the T-REX, Porsche 912 restoration and cars with swimming pools

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Watch as Jay Leno explores the 2013 Campagna Motors T-REX, a three-wheel, street-legal motorcycle that is insanely fast, especially since one of the powertrain options is a six-cylinder BMW engine and the thing weighs practically nothing.