I was going to post my reply, but jdoublecubed said exactly what I would have said. I wouldn't do Inspection II ahead of time because that is only money that you will not recoup.
You didn't mention what car you bought that gets double the mileage but I hope that it gives you at least half the fun of driving your M Coupe!
__________________
The Coupe: 2016 M4 | Sakhir Orange | Black Full Merino Leather | CF Trim | M-DCT | More | ED 5/13/16
The Sedan: 2018 M3 | San Marino Blue | Black Full Merino Leather | CF Trim | M-DCT | ZCP | ED 7/18/18
The Roadster: 2006 Z4 | Interlagos Blue | Black Extended Nappa Leather | Carbon Leather Trim | Purchased 7/19/12
|