2010 Chevrolet Matiz Problems

The interior roof light housing is extremely tight in the head lining. I don't want to risk breaking it by pulling it straight down. Is there a way of removal that I don't know about?

After 3 or 4 says of not using the battery is flat as a pancake. I guess there is done drain but cannot trace it. I'm thinking it's a faulty alternator as I've not disconnected it to test. Has any one else had similar problem? thanks

The revs are very slow indeed to come off when changing gear, the car has only done 18,000 miles and has been checked at Chevrolet dealership who found no fault with diagnostic tests, and commented it was a design fault with this model. I ...