Conversation so far:
when did Alan start racing?
Kulwicki began his racing career as a 13-year-old kart racer.
who made the karts for him?
Kulwicki asked his father for advice, he typically ended up doing most of the work himself.
"I showed him how", Gerry Kulwicki said.
when did Alan start racing cars?
Kulwicki moved from dirt tracks to paved tracks in 1977.
did he have any sponsors?
CANNOTANSWER.
what make of cars did he drive?
He also teamed up with racecar builder Greg Krieger to research, model, engineer, and construct an innovative car with far more torsional stiffness than other late models.
did the stiffness help?
The increased stiffness allowed the car to handle better in the corners, which increased its speed.
did he win any races?
Racing at Slinger Super Speedway, he won the track championship in 1977.

Question: were there other kinds of races that he participated in?
Self-contained rewrite: Besides kart racing on dirt tracks and car racing on paved tracks, were there other kinds of races that Alan Kulwicki participated in?