Curious if any of you do it or have done it. I Just spent two sessions in my buddy's van diemen FF (40min total) and my god what an easy way to make a viper feel like a dull boring brick.. needless to say cars with fenders are no longer a thing of my interests on track days haha. Next step for me to try in the spring is a full aero formula BMW but I plan to buy my own formula Ford as the learning curve is severely different from a "regular" car.