UK Car Repair Questions? Ask a Mechanic for Answers ASAP
Definately smoke, not steam?
If tbe fluids are ok, I would get it towed to your nearest Vauxhall dealer.
Injectors can stick open and cause your scenario.
It was running normally, then suddenly did this?
Is the engine light on while running?
Do you need any further help?
I hope my advice has been of assistance to you.