Putting the seatbelt on will increase chance of surviving a vehicle crash up to 70km/h. Having the seatbelt off will drastically lower chances of survival even at 50km/h.
Vehicles with automatic and manual gear will have different gearboxes.
Having the handbrake off when parked may make the vehicle roll.
HUD gauges required: Speedometer, RPM, Fuel, Gearbox, Handbrake, Seatbelt status