general problems of the 2015 Subaru Impreza Wrx

Vehicle is burning oil, oil came out through where the dip-stick is placed. Found oil on the exhaust tips. Mass air flow sensor is malfunctioning. Requires new coils and spark plugs even though I have already replaced them. Required a new battery, however, replacing the battery did not keep the vehicle from turning off by itself. O2 sensor, bank 1 sensor 2, is also malfunctioning.

Mpg reported on the dash is exaggerated. Vehicle shows 27. 3mpg for the following trip, that is between the last and current fuel fill up. Real world calculated mpg is 19. 55, which is significantly off, of what is being reported by the vehicle.

While waiting in a parking with car and ac turned on, the cabin began to smell very hard like gas this happened approximately 10 minutes after parked and waiting. Did it again while waiting in another parking with car and ac turned on after 10 minutes. Only happens when stationary, parked with ac on. Not while driving or frequent fast stops.

Purchased the vehicle new with less than ten miles on odometer. From new, the vehicle produced a strong odor of burning or melting plastic every time it was driven. Clutch began slipping and then catastrophically failed at 5100 miles. Towed to dealership, clutch replaced. At 7,200 miles, clutch throw-out bearing failed, dealer replaced. At 11,709 miles, throw out bearing failed again, dealer discovered clutch was on the verge of second failure during service. A second replacement clutch has been ordered. Advised by service manager that cause of all failures was that a "plug" of some sort had worked loose, causing clutch to remain engaged at all times, leading to clutch failure. If clutch failure occurred at intersection or rail crossing, this manufacturing defect could lead to the severe injury or even the death of occupants in the disabled vehicle, as this failure renders the vehicle immobile.