Got a bit of private road and had a go with my Vbox to see how it compared, fl sportback wet road about 8 degrees, 4500 miles a full tank of fuel and me a 6'2 15stone lump, vbox tools times below:-
Test Summary:
Test Desc Max Slope Elapsed Time Slope Results
0-60 MPH -1.00% 3.674 Seconds 0.01% Results Valid
0-100 KPH -1.00% 3.855 Seconds -0.01% Results Valid
0-100 MPH -1.00% 8.885 Seconds -0.66% Results Valid
0-60 MPH (1-Ft) -1.00% 3.335 Seconds 0.01% Results Valid
0-100 KPH (1-Ft) -1.00% 3.515 Seconds -0.01% Results Valid
0-100 MPH (1-Ft) -1.00% 8.545 Seconds -0.66% Results Valid
30-60 MPH -1.50% 2.112 Seconds -0.93% Results Valid
40-80 MPH -1.50% 3.751 Seconds -0.74% Results Valid
60-100 MPH -2.00% 5.210 Seconds -0.85% Results Valid
Test Summary:
Test Desc Max Slope Elapsed Time Slope Results
0-60 MPH -1.00% 3.674 Seconds 0.01% Results Valid
0-100 KPH -1.00% 3.855 Seconds -0.01% Results Valid
0-100 MPH -1.00% 8.885 Seconds -0.66% Results Valid
0-60 MPH (1-Ft) -1.00% 3.335 Seconds 0.01% Results Valid
0-100 KPH (1-Ft) -1.00% 3.515 Seconds -0.01% Results Valid
0-100 MPH (1-Ft) -1.00% 8.545 Seconds -0.66% Results Valid
30-60 MPH -1.50% 2.112 Seconds -0.93% Results Valid
40-80 MPH -1.50% 3.751 Seconds -0.74% Results Valid
60-100 MPH -2.00% 5.210 Seconds -0.85% Results Valid