I remember reading about a documentary about a couple of guys racing across the U.S. on souped-up cars (or a single car). It was just a year or two ago, and the film was in post-production at the time. I can't remember the film's title but I think it just consisted of the time in which they finished the race. Can anybody help me out?

It's called 32 Hours 7 Minutes

Here is the website 32 Hours 7 Minutes

I've been waiting for this, it looked really interesting.