Narp. Also, the Classics head is a bit too big for the Generations body - he can't transform into vehicle mode properly with it attached. But the Generations head looks pretty good on the Classics body.
The heads most certainly make a big difference (just ask Cliffjumper). And the bodies do evoke the characters too. Grimlock may not be a robotic dinosaur, but they did choose a beefy muscle car, and the way it forms the robot mode really bulks him up. He even comes with an Energo Sword. The main downside with that toy is the counter-intuitive transformation. But the BT Grimlock mould really does evoke the Grimlock character. I personally didn't think it was the best idea to redeco the mould as Wheeljack; despite the extensive repaint and retooled head, that mould still looks too bulky to be Wheeljack... it's like Wheeljack on 'roids.
And Wheeljack with a sword just feels weird (yeah, I know ironic considering the current incarnation of that namesake
)