Apart from the CVT with preselected ratios on "S" mode I mentioned in my previous thread, I also noticed that the Single-clutch Semiautomatic/Automated Manual transmission is another kind to have not been simulated yet in BeamNG. On "D" mode in such a transmission, the synchro mechanisms of a manual transmission get an active role and shift the gears automatically (in a robotized manner) but this gearbox gives you the freedom on "M" mode to change up or down as you wish, just like on any other modern Automatic on manual mode. Some gearboxes of this type also offered the driver the choice of how powerful/violent the shifts can be - the BMW SMG and the Lamborghini ISR of the Aventador were some very characteristic examples. The problems with Semiautomatic/Automated Manual gearboxes are three: There's a long interruption/discontinuance of the power flow during every upshift because the synchro mechanisms take a bit of time to move from one gear onto another (hence the 'robotized' nickname). Also, when a downshift occurs, sometimes it doesn't occur at exactly the time the driver wants it to occur and the dynamic balance of the car gets upset by the engine moving on its mounts, just like it has a manual transmission. Some Semiautomatic/Automated Manual systems also supported Launch Control (the Ferrari F1, the Lamborghini E-Gear, the Lamborghini ISR, the BMW SMG, the Lexus LFA unit, all of the aforementioned systems did). The problem here is that a Semiautomatic system uses a normal clutch - just like a manual and a sequential system - and, naturally, it can't stand more than a certain number of full-bore standing starts and it gets burned out. The Ferrari F1 system in the Enzo/FXX/599 GTB/599 GTO was notorious for this because the clutch could only stand up to 3 launches. Due to the nature of this transmission, rolling forwards/backwards on hills while giving gas to start moving in "D" and "R" is a given and this has the risk of destroying the clutch too. 90s/00s Supercars and Citycars (the Smart Fortwo had a Semiautomatic in its first two generations) in BeamNG can use such a gearbox and it will be very interesting seeing BeamNG simulating all of its facets and problems.