All race cars in the top 3 nascar touring series have 4 speed transmissions.
yes
It seems highly unlikely that Nascar will ever race strictly stock cars again.
Yes they can. Any race or gender can participate in Nascar racing.
The Nascar Cup Series fields 43 drivers at every race they go to on the schedule.
Talladega
43 cars race in each Nascar Sprint Cup race. The numbers change on how many enter.
Depends on the race, during NASCAR events the NASCAR stock cars race, during the 24 hours at Daytona event different sports cars race.
No, automatic transmissions may shift faster than a manual transmission because it takes a lot of skill to race and change gears using a manual with a clutch, however, the manual transmission allows you to decide exactly when to shift for more speed at the times you need it and for better engine performance when done by a skilled, practiced, professional racer.
No, they do not.
Chevy Volt
43 drivers are in one Nascar Sprint Cup Series race.