Issues already at 17K miles

This is a leased vehicle, provided to my spouse as a company car.  We are both allowed to drive it, so I have plenty of experience with it.  The biggest issue is that it is already developing problems at just over 17,000 miles.

The drivers window developed a leak (not good when it rains!) and we recently had to have the entire gear box/assembly replaced.  This should not be happening on a vehicle with just over 17,000 miles on it.  Also, the drivers seat isn't all that comfortable, no matter how much you play with the adjustments.

I would think you could do better in this class of car than an Impala.