Update
Just pulled the trigger on my BMW Power Train Plus- GOLD Extended Warranty.
As my manufacturer 4yr/50K warrantry for my 09-35i ends on Sunday, 6-30-13, I waited to the absolute end of my OEM coverage to make the Extended Warranty purchase. I also wanted to make sure that I made the extended warranty purchase before the OEM warranty ended. This saved hundreds more compared to purchasing this plan if the Z was out of warranty.
In any case, I got an even better deal than I originally negotiated with my local dealer.
BMW New pricing effective 4-1-13
PowerTrain Plus GOLD Plan- 84 Month/ 70,000 Miles plan ( This give me 36 months and 56K miles worth of coverage as I only have 28K on the clock.)
BMW MSRP- $3,370
Dealer Cost- $2620
My Cost $2670- $50 over dealer cost- The dealer showed me their complete cost and sell price sheets
Save- $700.00 off MSRP
For me, the $74.16 per month, annualized over the 36 months is cheap insurance to cover virtually all mechancial engine, DCT complete replacement, electrical system, cooling, Convert Top, ETC and virtually any issue that could arise. I can continue to drive the Zed hard when ever I want without worry ( almost) for 3 year and 56K miles.