How different do the Hot Shot series drive?

[Saito2]

All the various cars in the Hot Shot series use basically the same drivetrain. They mainly differ in chassis, suspension and steering. Assuming the Super Sabre and Boomerang are pretty much the same, how different a driving experience are the cars in the series? I've drive a Hot Shot (probably the most unique due to its suspension and bump steer) and a Super Shot. Do the Big Wig, Boomerang/Super Sabre and Hot Shot 2 have a significantly different feel to them? I wondering if its worth getting a runner Big Wig or upcoming Boomerang.

[MadInventor]

Boomerang is a bit quicker due to it's lighter weight, and I suspect has less bump steer due to the improved steering mechanism, but I think it will be fairly subtle changes.