| What kind of car does you dad drive?
MINI SS+ on 17in runflats with 22K on 'em can seem pretty harsh to someone who's used to something cushier.
As far as the wandering goes, find a smooth road or large parking area and get it rolling in neutral at a good clip to see if it truly wanders or if the tires are just following the road irregularities.
From my experience, runflats get extremely harsh as they wear and the steering feel can be affected if you don't conscientiously rotate the tires to minimize the higher wear at the inside of the tire due to the camber settings.
MINImeat
B/W MCS | 
