On a whole, NASCAR doesn't retire numbers. They have done so only once. This was in the Whelen Modified Tour, in honor of Richie Evans the #61 was retired.
As far as any number being retired in NASCAR's top three series, the closest has been the #3. After Dale Earnhardt Sr's death in 2001, only his son, Dale Jr., drove the #3 car in the Nationwide Series on two occasions.
Only time will tell if the #3 will again be used in the Cup Series. Dale Sr. drove for Richard Childress and now Childress has two grandsons (Austin and Ty Dillon) who use the #3 in the Nationwide and Camping World Truck Series. In 2014, Austin is expected to run full-time in the Cup Series.
No car number has ever been retired--the number belongs to the team--or reverts back to NASCAR to be re-issued. Dale's Number 3 is not retired, and it would be up to RCR to use the number again or not.
No. If Nascar did this it would mean that most numbers would be retired and we would be seeing 3 cars on the track.
No. Bill Elliott has never driven the number 8 car in any of the Nascar Series.
he isn't ever getting his number retired
Kyle Petty is a Nascar commentator on TNT during the summer, and he also co-hosts NASCAR RaceDay since his retirement.
Gil Hodges did and the Mets retired it
Dale Jarrett, who retired in 2008. Dale's father Ned, brother Glenn and son Jason were also Nascar drivers.
It seems highly unlikely that Nascar will ever race strictly stock cars again.
The number one spectator sport is NASCAR .
Michael Waltrip was the driver of the number 15 car in NASCAR in 2013.
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Best sport ever.