How does spark plug timing work? An explanation of automotive ignition systems. Ignition coils, distributors, and firing intervals all play an important role in ignition. Note: The cylinder order from ...

From the June 1990 issue of Car and Driver. The CD edition—0r is it the C/D edi­tion?—0f Saab's 9000 series came into being in 1989. The "CD" stands for "Classic Design," which, in a model line­up ...

From the December 1994 issue of Car and Driver. Is this car's pigmentation gonna pop some peepers, or what? Cadillac calls this hue, this essence d'Eldo, "Medium Montana Blue" (Big Sky buckaroos will ...

Do you have a problem with the 60-year-old gauges in your classic muscle car? After over a half-century of faithful service, they may have finally bitten the dust. But it might be that new high-output ...

With the LS engine rage taking over some of the Ford faithful, we are here to tell you there's another option—one with a Blue Oval still intact. Consider it therapy to counter the crazy idea that you ...

Editor's Note: Way back in March of 1998, GMHTP ran "Opti-Spark" by Ray Bohacz, an engineering-level dissection of GM's Opti-Spark distributor. This evolutionary ignition component was a bridge ...