I was driving on the 118 west freeway here in so cal last sunday, well I merged onto the 118 west from the 5 south and got stuck behind a little Acura Integra with a HUGE fart can muffler. Well, the funny thing about this is when she was just cruising along, there seemed to be no problem, but when she stepped on the gas to speed up, there was a HUGE cloud of blue smoke and it oddly smelled like oil.. When I first saw this, I though she dropped a ring or 10.. thats how bad the smoke was.. but then when she let off the gas, the smoke cleared and it looked normal again...
She then stepped on the gas again to get over and exit the freeway, well this time the smoke was so bad I had to step on my brakes and slow down, I couldnt even see my hood, needless to sat the lanes or other traffic.. and I was at least 10 cars back
You think someone with an issue like that would want to fix their car if its that bad, but I guess not.. at least not until they cause an accident and somehow get cought and blamed for it..