Project Gotham Racing 5 revealed?

There has been plenty of speculation on the future of Project Gotham Racing. Microsoft owns the name, but original developer is now part of Activision and working on Blur. Would we ever see a PGR5?

Speaking on the Tesla blog, company exec Tom Burt seems to have outed the fifth game in the series:

"A team of sound engineers from Microsoft Game Studios (some working on Forza, some on Project Gotham Racing) asked if I was willing to take my Roadster to a track so they could record a variety of sounds. Some time ago they had the opportunity to record Tesla motor noises when a prototype was being run on a dyno at Tesla. But the teams were excited about the prospect of recording other sounds, particularly tire skid and squeal noises, without the interference of loud engine and exhaust noise. Of course I said yes."

Thanks: VG247