When it was released in '91, the Mitsubishi 3000GT VR-4, along with its twin brother, the Dodge Stealth RT/TT, was regarded as a top-of-the-line sports car. With its all-wheel-drive system, electronically controlled suspension, all-wheel steering and a 300 HP 3.0 V6 twin-turbo engine, it was one of the most formidable cars on the road in its price range and also well beyond. Its main flaw, however, is its weight, which at 1700 kg seems pretty hefty for a sports car. Nonetheless, it's one of the more underrated cars on the road. It has tremendous modification potential and is capable of achieving well over 700 horsepower for a realtively small amount of money. Granted, upgrading the suspension and brakes on such a powerful vehicle is imperative, but the total amount of money for the upgrade still isn't that high.
3SI is a 3000GT enthusiast website, devoted to these machines, so if anyone would want to learn more about these cars, you will enjoy the site. There are some incredibly knowledgable people on their board who KNOW their stuff when it comes to tuning, so if you can locate their posts you will be in for a read
I also disagree with the entire rice-burner mentality. While the Porsches are in a league of their own, these cars are in no way comparable to 100-HP Honda Civics as the phrase "rice burner" would imply. Also note that when they were released, the 3000GTs would had given the Carreras a run for their money.
This post is in no way intended to be a flame, it's just a thought from a fellow car enthusiast.