Engine Trouble

Hello,

I drive a 99 Z24. Last night everything worked fine, i went and filled up gas. This morning when i started the car it shook like crazy. Then whenever the RPM's would drop under 1200 the car would shake again. I checked my levels and noticed my coolant and oil were a little low. I added coolant and oil, but i put to much oil into it. I drove it to the mechanics but on the way it smelt like something was burning, like rubber or the belts. Looking back i noticed a HUGE cloud of smoke(it got worse when i put oil in). They cant look at it until tommorow but i was wondering if perhaps anyone could tell me what i might be looking at? Thanks in advance for any responses.

Where there is smoke...there is trouble.....What color was the smoke ???
Was it coming from the exhaust pipe or from under the hood ?

Any lights on the dash come on ??? CEL ??? It is overheat ???

Worse case in my opinion...Blow head gasket !!!

One night Donk got stonkered and drive my Landy home with a broken belt from the bush.......I asked him did you see the light on the dash ??? he said what dash !!!! ....

Cheers.. JzJzz and the Man from Down Under..