Apart from the rocket 163 which takes a mere 6 seconds to accelerate through 100mph, here are the top ten aircraft for 18'000 feet.
A/C | Seconds | m/s^2[list=1]
- Bf 109G-10 | 24.8 | 1.8
- Spit XIV | 25.1 | 1.8
- Bf 109F-4 | 25.7 |1.7
- Bf 109G-2 | 26.7 |1.7
- P-38L | 26.8 | 1.7
- F4U-4 | 27.0 | 1.7
- Bf 109G-6 | 27.5 | 1.6
- Spit IX | 27.7 | 1.6
- Fw 190D-9 | 27.8 | 1.6
- C205 | 28.5 | 1.6
- P-47D-30 | 28.9 | 1.5[/list=1]
Interesting results on the 109 series, the P-38 and the C205 were laying down good rubber on the tarmac. Note the lack of any La-5/7 aircraft. 
Conclusions...
What it does show is that all aircraft handle differently at varying altitudes. Others are better than some, and there are a couple of aircraft performing well at all levels (109 G10/G2, Spit XIV, 190-D9, and the F4U-4).
I have the sea level and 18'000 feet tests combined into one spread sheet. If someone wishes to have the updated version, email me at mr.fork@shaw.ca. The results are available in full format in the A/C and Weapons forum HERE.
