Mine is a daily driver, not every day as i work shift but is my only form of transport other than my bicycle, your tyre wear is either your driving style or they need adjusting as even on a pair of continentals i get good mileage. your other problems are unfortunate and happen with cars, i had a brand new car which broke down 2 weeks after buying it and had to wait 2 weeks for its repair, being so young i couldn't get a hire car and had to use the bus.