No good racing games in the vain of SR1 and 2 and MCO and HotRod American Street Drag but ,there are some good ones out there. One of the Devs posted on face book that they are tinkering with Unity Game Engine again.
It is not as simple as just making stages SR3 is bigger game than most realize and a monolithic under taking, especially with plans and story line being historical correct for the period. (1972 before the oil crysis)
Being steam require jumping a number or large legal hurdles too.
As long as the forums and site are up or the the very least the domain under out control it's all good and won't go away over my cold, dead, lifeless body.