I stop and start on nasty sand (2+ feet deep) using cheap-ass A/T sand/snow tires with my Subaru.
Do you own an AWD vehicle? They outperform 4x4s on everything except rock.
The point is that 4WD and 4x4 systems have zero impact on your stopping distance, every car brakes with all 4 wheels.
Please could you explain what impact the drive system of a vehicle has on its ability to stop?