[onewhippedpuppy]

Originally Posted by dd74

Matt - re. the G8 GXP, what's the math on depreciation after two years? How much value does the car lose at say, $40,000 after two years?

Re. gas mileage. I can't help but think many of these cars get fairly good mpg for their engines. Think of all the torque they have and how one does not have to be on the gas to get the car moving.

The neighbor has an early M-B 500 series sedan. He gets 18 mpg. during his twelve-mile commute to Downtown L.A. and back.

Well, a quick look at Autotrader shows that you can pick up a 2008 G8 GT for about $22k pretty easily with under 20k miles. That was a $30k-ish car brand new, so that's about 15% yearly depreciation. I'd guess that most cars seem to hit 50% after 3-4 years, so 15% per year seems about right. I don't think the GXP is rare enough to hold it's value based on low production or high demand, and it will get lumped in with the regular GTs by many non-enthusiast buyers. Just like how the Chrysler SRT products aren't much more money used than a regular model. I'd bet that in 2011 you could find GXPs in the $20k range.

400 HP and 20+ MPG is pretty impressive. I thought my 540i was special because it had 300 HP and got 25 MPG on the highway. My 370 HP XJR is rated at 20 MPG, but I'm yet to see over 17. Probably more a function of my driving habits, it sounds amazing at full throttle.

W124 500E? That is one of my ultimate dream cars. They seem to have bottomed out in the $15k range, that would be one to buy and keep.