The ISF has set the bar pretty high as the first F. Some of us have caught the Lexus bug, like me, and wouldnt hesitate to buy another one. I wouldn't say no to either RCF or GSF, and for daily driving (non track) I'm sure both cars are still very impressive. In reality, an exciting drive is typically a spirited b Road or sweeping bend joining the motorway. I don't think I would ever push the car enough to know the issues raised by the car journalists. They're both reliable, fast and sound good. That's good enough for me.