Only 10 cars to be in Sundays race

The title above is an exageration but if this practice keeps going the same way it might just happen.
Sprint Cup practice is underway at Las Vegas and so far five cars have crashed. All but two of these teams have went to a backup.
So far Patrick Carpentier, Juan Montoya, Bobby Labonte, and Reed Sorenson have all went to backup cars while Kasey Kahne and Sam Hornish Jr. are still using the cars the same cars.
This is the most backup cars we have ever seen being used with the Car of Tomorrow. Last year only one team used a backup car in the 16 COT races. That was the 99 team of Carl Edwards.
The Sprint Cup drivers aren't the only ones having trouble with the slick track. In the Nationwide practice a few drivers had run ins with the outside wall.
Lets hope that the track cools down when qualifying starts at 6 p.m. Eastern.