Run the Oasis, it will tell you if the Clutch TSB was done. Click over to teamshelby, on there is listed the date the factory updates went into effect
Id go for the 09 just because its newer an chances are the clutch flywheel will fail on the 07. But if you just want the car for a collector reason the 07 would be better.
I was leaning towards the 09 because it is 2 years newer, last of that body style, and fewer built. BTW, I didn't mention it but both are convertibles, not sure it makes a difference.
It would be interesting to get the production numbers from the internet, by color and interior to see which one was the lower build?
Does the 09 have HID's? That wasn't an option for 07.
R
2009 does have HID, only 222 built and only 36 with stripe delete like this one.
Many more built in 07 and it doesn't have HID or Nav (but very low miles)