You guys did it the fun but hard way! When I got rid of the 420SEL I just called the junkers, they winched it up on a flat bed and took it away for me.
I would never tow a car like that, I can just imagin the strap parting and me flying into a new Lexus or something.
http://www.youtube.com/watch?v=lfYn_jplpvM