One appliance and crew from Slough attended.
One car was well alight when they arrived. The fire was affecting a grass verge.
The firefighters used two sets of breathing apparatus and two hose reels.
Thames Valley Police also attended to help manage traffic. The road was closed while the emergency services worked at the scene.
The car was destroyed by the fire. Around 15 square metres of verge was also effected by the fire.
