So I'm driving to pick my sister up from work. When i get on the high way it feels like the car lost all of its power. I had to floor it for a bit just to get to 60. I start to smell something sweet (coolant i presume). The brakes got really tight and barely worked. So I get her and we're on our way back home. Same problem except now the car starts to overheat like a bitch. I see smoke coming from under the hood. I find a place to pull over and let the car cool down. I notice that smoke is also coming from the drivers side rear wheel. Looked under the car but couldnt see where it was coming from. All 4 rims were burning hot when i touched them. I let the car cool down for about 20 minutes and head back home. As I am driving the car suddently feels fine again along with the brakes and no smell. This happened once a while back too just not as serious and then like today it got better. Could this be a possible BHG?