An honest question,
Isn't the LS460 a much better value? The 600 has a huge premium attached to it, is a far heavier car which kills performance and the fuel economy is actually a bit worse despite being a hybrid. And I'm not going to touch on the argument about whether or not it stacks up in the prestige category with, say, the Mercedes S-class because I don't have the money to touch either one.
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2001 Camaro SS
310 RWHP, 330 RWTQ stock @ 12,000 miles
28 mpg highway
1991 GMC Jimmy - 150,000 miles, winter beater