Motor

Maximum speed:
The car need 1350 watt to rotate 1500 rpm. As per car dimension and solar cell type that has been selected it will give 950 watt.
1350 watt ›› 1500 rpm
950 watt ›› X rpm
1350 / 950 = 1500 / X
X = 1055 rpm
(1055 (speed in RPM)* 2 * pi) = 110 rad / s
110 (angular speed)* 0.2205 (wheel radius) = 24
m/s = 86 Km/h