This comes from the "other" SL forum

The 500SL has the fastest acceleration compared to the 560SL , the 500SL was only available in Europe and as an example the 500SL was published by MB as having 0-60 times of 7.4 seconds for top speed of 140MPH compared to the 560SL 8 seconds and 137 MPH .Torque for the 500SL is 297@3200RPM and for the 560SL 279@3250RPM .Therefor it can be seen that of all the 107's produced the 500SL was superior to the rest .