We have covered a few turbocharged Porsche models on our Supercars On A $50,000 Budget series, including the air-cooled 964 generation 911, as well as the more modern 997 911 Turbo. We have even recommended a Cayenne Turbo which has a 500-horsepower V8. The 996 may not be the best of the 911 generations, but we know that the Turbo model could be a future collectible. If the 996 Turbo isn't exciting enough for you, we found a 2001 model which has been tuned by Gemballa with some insane results.

You really couldn't miss this car coming down the road, although that is mostly because it now sports an eye-searing green paint job. If you aren't a fan of the green, the car underneath is black on black. The green is just a wrap. What's more important about this 996 911 is the work that's been done under the hood. As you can easily tell by all of the decals, this Porsche was tuned by Gemballa who created the GTR BiTurbo by tuning the 911 Turbo to 500, 550, or 600 hp depending on spec. It isn't stated which spec this green Gemballa car is, but it has 500 hp at the very least. This makes it more powerful than a newer 997 Turbo. Power still comes from a 3.6-liter flat-six with two turbochargers.

This car is currently being offered by Motor Works Auto Group in Barrington, Illinois. The dealer wants $46,000 for the car, putting it comfortably under our $50,000 budget. The car only has 38,365 miles on it, which we think makes it a good value. The dealer claims that a complete top-end overhaul of the car was recently done at a cost of $17,000. This could be a sales trick, but the car doesn't look like it's been completely neglected either. The interior seems to be in pretty good shape, and is basically unchanged from the standard car.

The Gemballa GTR BiTuro sends its power to all four wheels through a six-speed manual transmission. The car also comes with ventilated brakes eight-pot calipers as well as upgraded suspension. We aren't sure which engine tune this Gemballa has, but the 600 model had a top speed of 211 mph and a 0-60 time of just 3.4 seconds. With performance figures like that, this sub-$50,000 car would embarrass most modern supercars. Obviously, you may be taking a risk buying a highly tuned sports car at this price, but that's to be expected when hunting for bargain supercars.

Unfortunately, we couldn't get footage of the exact car, but here's a video of how fast you could expect it to be. The car gets a lightning-fast, drama free launch thanks to AWD, and lets out a wonderful exhaust wail.