What is a new car that is around 25K that is easily upgradeable performance wise?

you can do alot with 4 cyl, so dint rule them out, most Honda’s acuras and the like are good choices.

Ford Mustang. They are cheap, reliable, are fast stock and have a vast aftermarket that is also quite cheap. The new Mustang takes turn better with improved suspension with the addition of a pan-hard bar and three link suspension.While a little more pricey the G8 from Pontiac is a quick car. The Nissan 350z also has some good power stock and is begging to get a good aftermarket behind it. The Mitsubishi Evo and Subaru WRX are great corner carvers and very quick as well with the AWD although a little over your price range

I don’t see why you are ruling out 4 cylinders…that really rules out one of the best cars there is….

Subaru Impreza WRX…230 HP stock and weighing only 3000 lbs, 5 point double wishbone suspension, sport tuned, AWD.

0-60 in just over 5 seconds.

For a little more you can get the STI which is also a 4 cylinder, and yet it still has 300 HP stock and goes 0-60 in 4.8 seconds.

Easily upgradeable, i’ve met people with STI’s and Evo’s approaching 1000 HP (there is a guy in my city who has an EVO that dyno’s out at 916 HP…still using the stock 2 liter 4 cylinder engine…of course he is filthy rich and has dumped almost twice the cars value on mods).

You really will not get any faster than the WRX for that much money. The STI is in the mid to high $30,000 depending on if you choose all the extras or not. The WRX is 27k, so closer to your price range and fast as hell and turns way better than any Mustang or Charger…

O ya the Charger has a huge engine compared to the WRX and more HP, but yet the WRX still goes 0-60 faster than the Charger (faster by about 1.3 seconds).