Just take a deep breath, & trade in the Maxi on a 5 series like I did mine.
Then you'll know what a REAL car is supposed to drive like. A 2 year old 5
series will drive immeasurably better than your 05 Maxi, PLUS you'll be
treated decently by the dealer & company.
Through personal experience, Nissan will simply NOT give a flying $@$! about
you if you have a problem.