1) The Mass Airflow Sensor is literally a 5 minute DIY job! AND...you can find the sensor through vendors other than the dealer for hundreds less than what you were quoted.
2)The Top...search renntech org for problems and answers to the top...maybe its not as bad as they say...hell for $2500 i would try to fix myself!
3)The hand brake...nothing special about this...its a HAND BRAKE like all other cars! If it seems OK to you then don't worry about it at all. If it is bothering you I'm sure a basic mechanic can adjust it for under $50.
4)Coolant Leak...This is a pretty normal problem that has been talked up a bunch...go to renntech.org and see how to change yourself. Other than being a bit of a pain in the ass to change its really not hard to do. Save yourself the $1500 and spend 3+ hours changing it yourself.
5)The extended warranty...for $3000 it sure doesn't cover much! Why even have it? Cancel it immediatly 'cause your getting screwed!
Good luck!
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