Conversation so far:
who won the 1990 nascar winston cup championship
Dale Earnhardt with Richard Childress Racing was crowned the 1990 Winston Cup champion.
when did the driver Dale Earnhardt begin his racing career
Dale Earnhardt began his career in 1975 in the World 600 as part of the Winston Cup Series.

Question: how did the driver die
Self-contained rewrite: how did Dale Earnhardt die