Something doesn't seem right, why is there no debris or sparks flying? The tyres would be off the rims in seconds at that speed leaving a shower of sparks, and the drag would require a full throttle effort to maintain the speed. And for such a straight line to be maintained...?
It seems real, from the BBC link the police confirm they did attend the scene at the time of the incident, and "A spokesman from Arclid Transport said: "There was an incident between a car and one of our vehicles in January. Since seeing the footage from YouTube we are investigating."
You've been watching too many movies :) If this was Hollywood, the Clio would've blown up several junctions ago.
It's quite amazing how effortlessly the lorry seems to push the car along, but I guess the goods that it usually hauls around is a few times heavier than a Clio which probably weighs less than a tonne. The ground also seems wet and the car's tyres are facing the wrong way so it is probably lacking some grip?
I'm wondering if the driver of the car attempted to get out of the situation in any way? e.g. horn?