While the Elise is definitely underpowered, it hides it well. It's incredible fun in the twisties.
If the lack of power bothers you, there are very good supercharger options out there:
http://www.blackwatchracing.com/BOE-...its-p/1119.htm
http://www.visionfunction.com/
But I've had my Elise for eight years now and haven't felt like I have to go that route yet.