Well I bought a 2002 Accent with the twin cam engine for city driving
I almost had my Mustang ruined because some ******* in a honda didn't stop at his red light (Vtec must have been in full force - no way to stop that much power ya know). So now my Mustang can rest during the week while the 4 banger gets used for the daily beatings. I'm pretty happy, the fuel savings alone help pay for the "new" car. I will upload new pics of the 'stang later with the polished cobra intake and radiator (yeah I started to polish my aluminum rad, the middle part on top is a freaking mirror now). I got the polish bug, I want to do my water pump, PS bracket and alternator. 

I get 30 MPG hwy yes, with a 331. Granted all I have to do is punch it a few times and I'm down to 23-25 mpg. Keep in mind I'm cruising @ 1750 rpms @ 70 mph with the throttle 1/2" down, slightly slower and I'm chirping tires! Around town (in Hampton Roads is 70% hwy) I get 18-21 mpg, which is better than I would expect myself.
its even a ford