wasn't the point on fifth gear to keep it all looking original tho'?
Nail head and hammer interface achieved.
The whole point was to make it better but keep it original within reason. Banging in a 20vT or a VR6 is the easy/lazy option and would have transformed the characteristics of the car (especially the front heavey lardy VR6 lump). 2.0 ABF coversion or 9A bottom end would have been aother option. It would have had more power than standard but without rebuilding the bottom end of either of those would have not rev'd as high as the engine they built for it.
I like what TSR did and it's much more interesting than just chucking in a bigger engine and calling a car modded.
Nick
aint you doing this kind of conversion to your rado??? 
Noooo staying 2.0 16v but if I had the cash I'd get some hot cams, a P&P'd head, lightened and balanced flywheel, crank, rods etc and a 4 branch fannymold + decat.
Nick