As an owner of both a Lexus SC400 and an NSX, perhaps I can help explain. No, the SC400 is not a pure sports car. That is what drove me to eventually buy an NSX too.
However, it is a pretty damn fast car. I have been continually amazed by how good it is, even when I occasionally switch to it from using the NSX. It weighs a lot, is front-engined instead of mid-engined, and has soft bushings to keep the ride reasonable, and all these things add up to less sharp and quick transitions from side to side. But that is really the only thing it yields to most sports cars.
Quite aside from the rush of the 250 HP V8 (more if you add a K&N to help it breathe better like I did), I can take it around exit ramps about as fast as the NSX. Despite it being a comfortable car to cruise distances in, it will corner at .89g.
And that was with the factory Eagle GS-D's. It seems like it goes even faster without even peeping the tires now that I put Bridgestone S-03 Pole Postions on it. I would not be surprised if it was now the same .91 as the NSX. As I say, the transition is less snappy than the NSX, but once it starts the corner it grabs and holds to the point of amazement. Don't try that in the LS400 Lexus sedan, though.
The brakes are as good as the accelleration and cornering. The reliability has been impeccible like the NSX. And the styling is simply beautiful. I decided I simply couldn't part with such a good car when I got the NSX, so now have more cars than people at our house, or spots in our garage!
So while it isn't a pure sports car, I wouldn't put it down as completely inappropriate. It finds a perfect balance between enthusiastic driving and comfort. So I guess it all depends how you define SuperCar.
By the way, I have this book. Unfortunately, my cover has a Mitsubishi 3000GT on it. I wish I had the printing with two of the three cars I own shown as the ones on the cover!
Chip
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Chip Alexander
'97 Blue/Tan NSX-T with Tubi Exhaust, Fiamm Horn
'92 Green/Tan Lexus SC400 Coupe
'02 Blue/Tan BMW 325iT Sportwagon