Including the magazines above, the Magazines Mark has written for include:

Trackside
Late Model Racer
Dirt Late Model
Miami Engineer
Stock Car Racing Magazine
Circle Track Magazine
Since 1993, Mark Whitney has been writing technical articles for a number of motorsports and engineering magazines.  His articles number over 200.  He has also written technical instruction sheets, catalog sections and press releases.
Here are some of Mark's sample articles:

Racing Safety Equipment - Motorsports Facility Safety
Sprint Car Fire Extinguisher - Open Wheel Flame Out
Seat Belt Installation: What You Need to Know
Safety: Racings Burning Question
Seat Padding - The Proof Is In the Padding
Testing and Reading Your Spark Plugs
Technical Writing