Sderenno, may I ask a technical question? These cars are based on the ISI Indycar, which has a serious flaw in terms of lack of throttle response (discussed lots elsewhere, so I won't repeat here). Because the throttle is OK in neutral, it must have something to do with a setting that affects the engine when in gear. The Indycar drives as if there is a giant flywheel attached to the engine that prevents rapid rpm change or power application. It is dampened by this flywheel effect, but only when a gear is engaged. Your cars have corrected this flaw and throttle application while in gear causes a much more expected response (for example, you can hang the tail out in 2nd gear easily on a tight corner). I would say it's not quite as sharp a response as realistic, but that's not the point here. Could you tell what physics adjustments were made related to this issue? If we can know what they are/or it is, then it will also be possible to do a quick mod of the Indycar to make it "normal" while we wait for who knows how long for ISI to fix it. I feel that the ISI Indycar is extremely well done except for that one major issue. Your fantastic to drive mod cars seem to prove that point (as many have lauded them here so far). Any help or information would be very much appreciated! And thanks again for such a great mod. It will be great to have a full '92 varied collection eventually.