30 fires from 140000 cars is one out of 4700 cars.
3 fires in 12000 cars is one out of 4000.
All in all Tesla does just as bad as Ford.
Yeah .. but.. Ford has to recall all cars because they KNOW there's gonna be more failures because they designed the engine wrong.
On the other hand, all three Tesla fires are because some crap on the road was thrown into the bottom side of the car piercing through the metal shielding. It's not technical/mechanical fault with the car, something that would inconvenience buyers with recalls or visits to service shops... they're more like.. accidents.
This could happen with any normal car and it probably does, it just doesn't start fires because there's no batteries there in regular cars.
I would put them in same category with gravel or stuff thrown by car ahead of you cracking the windshield.
Tesla apparently made a "temporary" fix by pushing firmware update which makes the car suspensions keep the car higher.