OK then, let's look at $$/mile. This should be interesting.
2000 Boxster S
Car 9500 after taxes.
Tires 450
Back up switch 25
Aftermarket rad 90
P-coolant 50
EDIT: almost forgot, really nice used oem headlight set, 250. old set was completely melted...
About to turn 5k miles. Driven weekly since August/2013
$ 2.02 / mile. EDIT after headlights, 2.07/mile
Subaru Legacy/ DD for 12 years
$24k new
maybe 2500 in repairs
few sets of tires 1500
about 160k on the clock
0.17 cents/ mile wow!
Of course the Subaru is a much rougher estimate.
But.. Driving the Legacy has never given me the type of thrills the Boxster has in such a short time.