In 1994 and early 1995, seven demonstration races for the newly-born NASCAR SuperTruck Series were held. The races were broadcast during coverage of the Winter Heat Series and were held on tracks primarily based on the West Coast of the United States, featuring four to five trucks each. The series helped begin the careers of future NASCAR drivers like Greg Biffle, Kurt Busch, Matt Crafton, and Ron Hornaday Jr.
Another exhibition race was held at the Homestead Motorsports Complex at the end of the 1995 season called the NASCAR Supertruck 25, though not as a Winter Heat race.
Supertruck Mesa Marin 20
The race was run as a support event to the NASCAR Featherlite Southwest Tour.
Craig Huartson, a NASCAR AutoZone Elite Division, Southeast Series driver, won the pole for the race with a lap speed of . After leading the first lap, he lost the lead to offroad racer Dave Ashley, who led for seven laps before relinquishing it to Rob MacCachren. MacCachren would lead until lap 13, when P. J. Jones claimed first, and led for the remainder of the race, beating Gary Collins by 15 seconds. Jones won the race in a Ford, though the team switched to Chevrolet for the next race after General Motors offered the team a technical package.
Race results
Supertruck Portland 20
The race, run as an undercard to the NASCAR AutoZone Elite Division, Northwest Series, was sold out.
After starting second, Rob MacCachren led all 20 laps of the race.
Race results
Supertruck Saugus 20
The race, held as part of a Featherlite Southwest Tour race weekend, featured a sellout crowd of 6,308.
Gary Collins led the entire race. Originally scheduled for 20 laps, the race was cut by five laps after an incident on lap 14 and after the caution started to rain; P. J. Jones, who was in second, backed his Ford into the wall between turns 3 and 4. At the same time, it began raining at the track which led the race to be the first ever Truck series event shortened due to rain. As a result, the race ended under caution. Craig Huartson did not finish the race when his engine failed after completing four laps.
Race results
Supertruck Tucson 20
Mike Hurlbert failed to start the race. After Gary Collins led the first lap, P. J. Jones, Ron Hornaday Jr. and Rick Carelli each led for one lap until Jones inherited the lead on lap 5. Craig Huartson led lap 6 before Jones reclaimed first, leading for three laps. Huartson retook the lead on lap 10, but relinquished it to Rob MacCachren on lap 11, who led two laps before Hornaday passed him for first. Hornaday led the final 13 laps to win the race.
Race results
Supertruck Winter Heat 200 No. 1
The race, along with the next two, were broadcast nationally by The Nashville Network as part of the Winter Heat program, an eight-week series featuring both the SuperTrucks and the Winston West Series. Former San Francisco 49ers kicker Mike Cofer, who had won on the regional Southwest Tour, was initially scheduled to run the race but did not.
Mike Skinner led the first 62 laps of the race; halfway through his run, a caution for debris was called on lap 32. Rick Carelli and Skinner traded the lead on laps 64 and 65 before the former led 79 straight laps. The No. 54 of Steve McEachern spun on the frontstretch on lap 86, bringing out the second caution of the day. On lap 137, T. J. Clark crashed in turn two to force a third caution. Shortly after the green flag wove on lap 143, Ron Hornaday Jr. took the lead, leading for 24 laps before relinquishing it to Carelli. The two battled for first until lap 176, when Carelli held on to the position for the final 25 laps to win.
Dave Ashley failed to start the race. Off-road racer Robby Gordon suffered an engine failure on lap 53, while Mike Hurlbert and T. J. Clark had rear end and suspension problems on laps 86 and 127, respectively.
Race results
Supertruck Winter Heat 200 No. 2
The second of the Winter Heat races, a competition caution was implemented to be flown at the race's halfway point on lap 100. Pole-sitter Ron Hornaday Jr. led the first 71 laps of the event. During his run, a caution was flown on lap 38 for Ken Schrader's slow truck. Hornaday gave up the lead to Mike Skinner on lap 72. Steve McEachern spun in turn 4 on lap 131 to force another caution, while the third and final yellow flag of the day occurred on lap 141 for debris. Skinner continued to lead until lap 177 when P. J. Jones passed him. Jones led the final 23 laps to win.
Two drivers failed to finish the race: Kerry Teague's engine failed on lap 38, while Johnny Benson failed to start.
Race results
Supertruck Winter Heat No. 3 (1995)