Search for Tatra 603 on www.youtube.com. You will find quite a few - even one racing at Goodwood. Would't mind one myself, or maybe a 613 or 700 - very nice.
Yes, the police escort was rather spectacular. I gather they were the Royal Protection Squad!
My wife was almost 6 months pregnant at the time. I can't remember why but we took her Stiletto instead of my Alpine and we were the only Stiletto there.
My dad and granddad were there to! He isn't sure they were driving our Venezia back then, but he still remembers driving true Brussels escorted by the police on old Harley Davidsons! Must 've been memorable moments... I'll try to scan some pics today or at least this week!
'68 sunbeam rapier fastback {B341006846 OD/LHO} I like a car that looks normal but really knocks your socks off!!