http://www.nightrider.com/biketech/accel_sim1.htm
Put in any car you want. Use the simple corresponding physics equations to get your numbers for frontal area, tire height, maximum torque etc.
I entered in the 300SDL. At 2400, assume 201 lb/ft of torque. At 4600, about 168 lb/ft, since the horsepower peaks at that point. All points inbetween indicate a gradual descension until the hp peak. Shift point at 4800.
I received this data:
Summary 300SDL Turbo
0-60: 12.98
0-100: 50.05
60 ft: 2.98 @ 25.13
330 ft: 7.95 @ 47.94
1/8 mile: 12.18 @ 57.20 (58.15 actual)
1000 ft: 15.90 @ 66.41
1/4 mile: 19.03 @ 72.07 (72.67 actual)
Top Speed: 129.05 @ 111.30 (17933 ft)
Max Accel: 0.407G
Topspeed seems a LITTLE low. I calculated a 20% drivetrain loss, 28.2 frontal area and 0.37 Cd for the W126.
Next, I will work on the 350. Then, I will try my 300SE.
Summary 350SD Turbo
0-60: 12.50
0-100: 45.18
60 ft: 2.90 @ 26.29
330 ft: 7.83 @ 48.38
1/8 mile: 12.05 @ 57.79 (58.83 actual)
1000 ft: 15.70 @ 67.94
1/4 mile: 18.75 @ 73.87 (74.45 actual)
Top Speed: 104.90 @ 109.78 (14162 ft)
Max Accel: 0.436G
Summary 300SE
0-60: 9.65
0-100: 30.10
60 ft: 2.63 @ 28.71
330 ft: 7.08 @ 53.50
1/8 mile: 10.93 @ 62.87 (63.94 actual)
1000 ft: 14.30 @ 73.62
1/4 mile: 17.13 @ 80.24 (80.96 actual)
Top Speed: 116.03 @ 124.34 (17970 ft)
Max Accel: 0.518G
So far, its not far off.
I'll keep updating this post:
Summary 300D Turbo
0-60: 10.63
0-100: 35.28
60 ft: 2.83 @ 26.65
330 ft: 7.53 @ 50.59
1/8 mile: 11.45 @ 61.28 (62.26 actual)
1000 ft: 14.93 @ 71.18
1/4 mile: 17.85 @ 77.35 (77.99 actual)
Top Speed: 115.58 @ 118.66 (17036 ft)
Max Accel: 0.452G