Clutch issues like clutch burning. Nissan say to stop riding the clutch. Even though ive been driving 10 years and never had this issue. Of resting foot on clutch who does that. .
Anywho I seen that at mill hill they wouldnt let me take it as a courtesy lol. Depreciation of only £3000 from what a 10,000 mile one might cost you. I reckon you can get two years servicing or two services and breakdown as standard.
Test the clutch on a hill, holding it and see if you can smell it. Give it some and see. Drive on variety of roads and check if its tramlining. Check windows for clicking. See how it copes with braking.
The 350 is a more stable car on motorway. More economical, sounds better,