When he's not chasing real estate transactions, NAI Hiffman founder and chairman Dennis Hiffman puts pedal to the metal on the racetrack (just snapped at a national Porsche Club of America racing event at New York's Watkins Glen, a regular Grand-Am and NASCAR track). Dennis's road racing dates back to the '70s at the famed Riverside International Raceway in California. He then began a love affair with late-model stock cars, racing each week on a Wisconsin track and mastering the curves. He brought a revamped, yellow 968 Firehawk to the Glen and placed second in the race. He has won 12 of the 14 races he has competed in this year.