Performance  
       
     
  Lateral Acceleration   Longitudinal Acceleration  
     
     
  Braking   Accelerating  
       
                                      
Power Limited   Traction Limited   Speed, Distance & Time   Hill Climbing   Axle Load Distribution

Maximum tractive force

The total tire force (Ft), at a given speed v, can be found if the power available at the tires (Pt) is known:

Ft =
Pt
v
(1)

Converting engine power to wheel power (more)

Top speed

From equation (1) and equation (1b) from the accelerating page, we get: (more)

vmax =
3
q
2
+
q2
4
+
p3
27
+
3
q
2
q2
4
+
p3
27
(2)

Where:

q =
Pt
0.5ρ ( CDA − frCLA )
 
p =
frmg
0.5ρ ( CDA − frCLA )

And:

ρ = atmospheric air density (= 1.225 kg/m³)
CDA = Drag factor
CLA = Lift factor
m = vehicle mass
g = gravitational acceleration (= 9.80665 m/s²)
fr = rolling resistance coefficient

*Note: If we neglect rolling resistance (fr = 0) then we can simplify to
vmax=
3
Pt
0.5ρCDA
.