Having spent a bit of time behind the wheel of an XFR I must say the idea of a proper XER with the full fat 5.0 supercharged V8 is appealing.
I was out in my brothers XFR earlier tonight, mini tunnel run with him driving the ISF
The engine in the XFR is an absolute nutjob, shedloads of torque. His car has Mina Gallery backboxes and sounds rather angry. The ISF is a lot higher pitched in comparison.
It's a shame Lexus haven't introduced a supercharged V8, will be interesting to see how the aftermarket kit from RR Racing fares.