My wife's isn't a turbo, but at 2500lbs its 138hp engine gets the job done to the tune of high 15's. Yes, I raced it! LOL! Its definitely not the manliest car, but it may be on of the funnest cars I've had the pleasure of driving. I posted recently about my first SCCA Solo2 event I attended with it and I managed to get 2nd place in my class my first time out, and I beat the times of all my buddy's who all had a minimum of 200hp on me, AWD (2 evo's, 1 STi, and 1 skyline GTR), and suspension mods.
If I ever get my projects done and my wife will let me, I'd love to put the 2ZZ engine from the celica GTS in it. Its rated at 180hp and it will be paired with a 6 speed gear box and add about 2000rpm to the usuable range. That extra 50hp in a 2500lb car would do WONDERS for acceleration.
I've seen guys get these cars into the SUB 2000lb range!!!