Do you know what you want? The dart, sonic, and brz are all slow cars and this thread is all about cars not being fast enough. Its like complaining about an SUV's speed and then cross shopping for mini vans.
Why not look at cars with much more potential if thats what you want, like a v6 camaro or mustang. Im sure they can be found for the same price as a 18k$ dart with a 4500$ forced induction kit. (btw forced induction on a N/A car not out of warranty is not a good idea)
A v6 w/ 4.56 + locker, rear wheels/suspension to put the power down, and any s/c kit on the market would wax brand new mustang gt's or camaro ss's. Youd literally spank the crap outa them.
The question is do you know what you're looking for?