The clutch/gearbox modelling is actually worse than SimBins, but it's one of the most requested "Improvements" that are wanted, the issue is simply that they won't release the feature without it being as perfect as they can make it, unfortunatly that means that were still with a modelling that means flat upshifts, no need for a clutch, using the paddle shifters in a H-Pattern car and you currently cannot stall any car.