The M4 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa.

[1][2][3][4] The route is a toll road, with two tollgates on the freeway section between Pretoria West and Hartbeespoort (one at either end).

[6] The M4 heads west as a freeway for 18 km (11 mi), with one off-ramp north of Atteridgeville (south of Lotus Gardens), to reach the Pelindaba Toll Plaza just before the North West Province boundary.

[6] The current M4 was part of the original main route from Pretoria to the west towards Rustenburg.

[6] Even the road signage on the Magalies Toll Freeway section may still have N4 indicated rather than M4,[10] with M4 showing on signs off the highway.