One fire appliance from Taunton was mobilised to two vehicles on fire on Heathfield Drive in Monkton Heathfield at 21:58 last night (Wednesday).
On arrival, crews confirmed two vehicles well alight and made pumps two.
An additional fire appliance also from Taunton was mobilised.
Crews got to work to extinguish the fire using two Breathing Apparatus, one Hose Reel Jet, one Main Jet and one Compressed Air Foam.
The fire spread to the gable end of a bungalow which suffered from smoke and heat damage.
The cause of the fire is believed to be deliberate.