ok, this isn't necessarily what you were initially thinking, but....
5th-generation (00-03) Nissan Maxima. Gets upper 20s-30 mpg highway (about 20 in the city). Safe, handle pretty good with a few suspension bolt-ons, have alot of room inside as well as biggish trunk, still are fairly sporty.
Plus they do NOT hold their resale value so you can get them cheap.
The 00-01 cars with the VQ30DE-K are less powerful (about 225hp) but have a smoother engine that is essentially bulletproof and pulls strong anywhere in the range.
The 02-03s have the VQ35 with about 265hp. Not quite as refined of an engine but still extremely reliable and has tons of power. YOu'd be surprised that there is a good aftermarket for them (albeit only a few good brands) and a fairly tight "tuning" community.
FWD for all-weather. 01 anniversary edition and 02+ have HLSD also....
Mechanically the transmissions (5mT in the 00-01 and 5mT in the 02+) are both very strong.
Only mechanical issues to keep your eye on are front wheel bearings and a fragile MAF, really. Otherwise they are extremely reliable. My '00 (started stock, ended up heavily modded) put in 180k miles of hard driving, autocross, a few track days, and many ski trips and dirt roads. In all that time, one driveaxle went bad, two wheel bearings, and a rear brake caliper. Was even still on the original clutch with no issues.
(disclaimer: I was a moderator on Maxima.org until recently).
ANyhow, you can find a nice example around 100k miles for probably $5k - nice car for a long commute and a good highway cruiser to boot...
mine...during and after an autocross