That’s underparts, not underpants for all the guys that were mislead to this article! This is how in 5 easy steps:
- Correctly install an adequate winch.
- Find a carwash with a strong ceiling.
- Winch your car’s front off the ground.
- Wash, rinse.
- Winch the car back down.
My Journey into the World 
With all the “adequacy” of the winch – I think that the one that got under there to wash the back end of the car did so because he lost some kind of bet. 🙂
The math is heavily skewed towards ‘no problem’. Here’s why:
my winch is rated for 9000 lbs ~ 4100 kgs.
The car’s weight was 2274 originally.
Let’s assume i added some 300 kilos (60 for the bullbar, 50 for the winch, 20 additional kilos for each wheel, and some 100% error margin 🙂 )
So we have a winch rated for 4100 kgs and a car weighing 2600 kgs. Also keep in mind that the winch only sustains part of the vehicle weight (the other part is distributed to the rear axle – more so as the inclination rises).
However, in true Solomonian style – nobody actually got UNDER the car 🙂
the problem is not to be destroyed ‘privatization’ rights … car wash … … obviously!