[97Boxsterian]

Thank you for all valuable advices! I appreciate that a lot!
Since the motor mount and RMS leak are covered by the warranty, I am not worried about that. I guess I will fix the rest of problem myself. The priority are:
1) Coolant leak and Mass Air Flow Sensor
2) Top issue
3) Hand break adjustment (may be I just live with it or just fix it when I have nothing to do in the future)

My Box is my wife's daily driver and we drive it out to dinner and grocery market every weekend. We don't feel anything wrong with it except sometime need to try 2-3 times to get the engine. The check engine light of my car never on, I doubt how serious the Coolant leak and MAF problems are. I check the oil and coolant level once a week and found both tank are always full. I notice both RMS leak and coolant in about 3 weeks ago when I bought my Box to a Porsche specialist to do the 30K service. He said it is not so bad and can be fixed in November when my extended warranty ready. I check the ground of my garage and see no coolant drop and just couple drops of engine oil every night. I smell no coolant on the back trunk so I assume my coolant leak is not so bad. I think the service rep from Porsche dealer just makes it a big deal and want my business.

I bought my box in a local used car dealer. I called them several time and they sound like they don't want to be responsible for that. I don't want to spend time with them and I will try to fix my car as soon as possible and may go back to sue the dealer for the money and time I spend on this mass. My advice for all used car shopper: PPI is a MUST and stay away from used car dealership.