Overdrive FTL on the Ferrari. It doesn't have the torque to keep up with the bimmer up top. The HP, revs & gearing was owning the BMW during acceleration, but the OD was killing the little high reving V8.
put a 5.5 or 6 Liter under there instead of the 4.3. The engine does sound crazy potent thou. 8500rpms worth.