Have driven my 3.7 Roadster, a manual Plus Four and a Plus Six back to back. An hour and a half in the latter two. The Plus Six is far more planted and solid feeling on the road compared to Plus Four due to weight and wider tyres seemingly but no more comfortable than its CX stable mate. Although its insanely fast, not so much more than my 3.7 Roadster though which for me gives an equal adrenaline rush although requiring more driver input. End result the visceral experience of driving my Roadster won.