Mercedes ending the life of the SLR Supercar on a very high note. The last SLR Roadster allocated for the U.S. market will go to auction with the proceeds going to St. Jude Children’s Research Hospital.

Just think, you can wipe way the tears of joy from helping all those kids by putting the hammer down on the 617 horsepower supercharged V-8 SLR and letting the wind do the work.

The last U.S. SLR features the same carbon fiber bodywork as the rest of the line, but it is the only one finished in Sienna Pearl metallic paint and Tobacco Brown leather interior. Saks Fifth Avenue will host the auction on November 20th at 1:00 pm EST. The vehicle’s staring price is $529,500.

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