I would really appreciate help please, 20 mins ago I just started my pride and joy and as soon as it started their was more vibration in the car and it sounded like it was running on 5 cylinders I drove for 500 yards or so and my engine light came on I turned around to come home, I've just opened oil cap their is a yellowish goo in their and more worrying water, I know very little about engines but I'm guessing head gasket has blown, it would be a real sickner I only bought the car because of its superb condition, their are 3 indipendents quite close to me do I drive it to one of them ot have it taken their on the back of a truck, if it is a serious rebuild I would unfortunately sell it as it is, am I jumping the gun or are all the symptoms I've mentioned very serious as I describe, I'm guessing without it being stripped down it's impossible to tell?