Typically you don't have to worry about being seen in a classic car, because people can hear you from blocks away. That's the main problem with all these new hybrid and electrics, they don't make any noise! I have a feeling we're going to see the government implement mandatory sound generators in electrics, once they become more common on the road.
Design wise some do stand out and it will be normal that when as you spend more the more attractive the car gets or at least the segment will help define this (ex. hybrid sports car vs hybrid sub compact)