Roadrunner Trailer 21 Is This A Good Background For My Character?

Is this a good background for my character? - roadrunner trailer 21

In a book written for my evening classes How to fix cars and I have included a solid intimate fictional charecter his old car into the bank removed,

It is this property

His name is Matt Barlean and works at a gas station in Miami. He drives a 1967 Plymouth Barracuda is a speed of 318 4. It is rich and lives in a trailer park of the old man, with his grandparents. (His parents died when hit by a drunk driver) keeps working on his car because his grandfather is retired at 75 only after work and used with the dealer to 40 years. He has a car that Matt did not see and was never found in the garage of his grandfather (Spoiler: It's a Hemi Road Runner 1971, he and his grandfather) Tinkerin the car together and turn the 318 into a four-course --

B5 Blue
426 Hemi (with his grandparents, Roadrunner)
4-Gang --
Tram


In fact, I wonder whether there are good information for him