“German Tune” would seem to mean a tendency to oversteer. That would be difficult with a front wheel drive. You might look into the geometry and physics of suspension and chassis design. Few front end shops understand the physics of alignment, they just pop in the CD and move the wheels until the dots line up. If you want good handling from a ‘sleeper,’ check the rice rocket boards. Hondas with up-graded power trains and stiffened suspensions are avaliable. And there may even be Toyota upgrades in the pipeline now. But a simple “suspension tune-up” won’t do much to a Camry.