I saw and sat in an IS-F this past Sunday at a Taste of Lexus event. While a nice car, and the engine sounds great, it is not a competitor for the Cayman. It is clearly targeted at the M3.

A little too boy racer for my tastes on the interior although the seats are nicely bolstered. I also didn't like the super low profile tires (30 section maybe--I didn't look). They looked like rubberbands around a wheel and just didn't fit with the overall size and height of the car.

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Robert