Nano Burning

One of my friends is thinking about taking a TATA nano & I was mentioning about how there have already been 3-4 incidents of the new car burning to flames. What is going on TATA? The engine obviously sounds like auto-rick engine. With 4 hefty people inside & in a up slope like in Hyderabad, I doubt if the car can do well.
We just need to do some stress & get the stats out of how much the engine can really bear...
The article -

"I have no idea what happened. A motorcycle rider overtook me and told me that the vehicle was on fire," said Sawant adding, "The engine was behind me and I did not realise that the car was on fire."