I can't remember the last time I saw one on the road, and none of the car shows are taking place this year. I'd say you're more likely to see an E-Type over in the UK, but they're still rare enough.
By coincidence, as I write this I'm watching TV show about restoring a Corvette Stingray (a C3) in the UK. The guy it belongs to is a member of a local Corvette owners club, so there must be a few Corvettes around. Back around 1980 there was an early-70s C3 parked outside some apartments about half a mile from where I lived. It was quite an exotic sight back then, and probably the first I'd seen in real life.
US cars are still rare over here. I used to see a tatty black 60s Mustang coupe and a bright yellow Dodge Rumble Bee locally, but I've not seen either for a while. I do occasionally see one of the newer Mustangs as they're finally being sold here with the steering wheel on the correct side.
Speaking of rare cars, I saw a McLaren going through town yesterday, although I wasn't close enough to see which model it was.