Hey guys. I just recently bought a 98 bmw 528i which is my first bmw so im fairly new to the crew and i was having a little problem. Every time im on the highway, when i hit 60 mph my car starts to putt and will not go any faster. It feels like the car is cutting out but it isn't. Anyway, when i put the car to 3rd gear it does the same thing when trying to accelerate past 60mph. I put it back into drive and feel a shift that fixes the problem. Anyone know exactly whats going on. I have a feeling it might be a sensor or something but like i said im new to bimmers so im not sure. Btw the previous owner said they just had the transmission replaced. Any help would be greatly appreciated.