Green Hummer?!

Can the two words even co-exist in the same sentence? If you want to spend about $24,000 on your $60,000 Hummer, than yes…they can. A Hummer can and has been converted into a bio-diesel machine, increasing mileage from 10 MPG to 24 MPG. (check out: http://puregreencars.com/index.php?news=155 ) So it can be done but the question is should it be done? You can drive a VW Golf on bio-diesel and break 50 MPG (check out: http://www.biodieselamerica.org/node/2525) 50 MPG?! That blows a measly 24 MPG out of the water! Or should I say out of the left over grease from yesterdays french fries! Hummer, I’m not sorry to say but Doc Brown would not be proud.