I've always drooled over two cars growing up. The NSX and (probably moreso) the Viper. While we all know the history of the NSX and can appreciate it, you can call the Viper is the antithesis of the NSX: Big engine, big tires, big brakes, no refinement = fast (The American way).
The Viper's conception as a tribute to the Ford-Powered Shelby Daytona Coupes was brought fourth by an ex-Ford employee and then President of Chrystler: Bob Lutz. As a modern embodiment of the Cobra (European sports car handling with a ridiculously large and powerful american big block stuffed in it), the Viper never tried to be refined, and that's part of its charm. The car won the GT2/GTS class at LeMans in 1998, 1999, & 2000 (the NSX won the GT2 class in 1995) and the 1998 FIA GT2 championship. The car has always had a rich racing heritage, and i've always been a sucker for any homologation-special or motorsport-inspired cars.
The Viper isn't easy to drive at its limit, but that's part of the challenge to master it. If you've ever criticized a GTR for "driving itself" then a car that challenges its driver should be right up your alley. It's not a great daily-driver like an NSX, its not easy to drive, it would be very much like owning a replica AC Cobra or Lotus Super 7 (albeit, slightly more liveable) but people own them for what they are.
It's a proper racecar with upper & lower control arms on all four corners (like an NSX) and a front-midship engine layout (the entire engine is behind the front wheel centerline -which is as close to 'mid-engine' as you can get in a FR layout) and it has a 48/52 weight distribution. No matter how you look at it, the car is a 190mph, 4-second to 60 car from the mid-90's with only the likes of a 993 Turbo to really challenge it in a pure performance standpoint in its day even if most drivers couldn't take it there.
I have and love the NSX, and i'm happy to have my other dream car that is a challenge to drive and is the complete opposite of the NSX.