Aron Oakley
breaks 100 mph in his Ford Focus Midget racer, but the 28-year-old is
used to higher speeds at his day job. As the aerodynamics engineer for
Penske Racing's NASCAR team, Oakley oversees wind-tunnel testing at the
team's Mooresville, N.C., headquarters — and in tunnels across the
country. The subtle design changes he suggests can make a big
difference. "After we tested Ryan Newman's car, he went out and broke a
track speed record," Oakley says. "It's great to be a small part of
that."