Originally Posted by gbb357
It's not from any Toyota car engine if that's what you mean, it's another version from the LS V8. And is'nt the V8 from the M3 derived from the V10 used in the M5 and M6?
Is the from the LS460 or some other boat.
The S65 is derived from the S85 V10 but a completely new casting / engine.
Still the S65 is derived from a good true M motor in the V10. The IS-F engine is derived from a luxo-barge.
If Lexus didn't bother developing a sporty motor, what other compromises did they make?