Has there ever been a race in Nascar without a caution?

Answer 1

Yes

to name a few

1959 Daytona 500

Several Michigan races

1998 spring Talladega race, won by Mark Martin. Also the fastest race in NASCAR history as Mark ran the race at an average speed of 188 mph

2001 spring Talladega race, won by Bobby Hamilton Sr.

2002 EA Sports 500, won by Dale Jr., the last ever caution-free race in NASCAR

Answer 2

Yes, on numerous occassions. Caution-free races have happened over the years, most recently at Talladega in 2002.

Answer 3

Yes, a couple times throughout a NASCAR season it occurs so it really isn't that rare of an occurrence.