Dr.Wicked-
Just checked out the hearse. There is NO way you can tell me you would drive past ANY other hearse and not acknowledge it. You may say, "Well a hearse is special". The Smart is special right off the assembly line. Not many brand new cars have character right off the assembly line. Oddly enough, it has happy go lucky character.
When you drive it people love to wave, not just other smart owners. Similar to the same reaction if you were driving an old Beetle with painted purple with flowers and peace signs on it. You really won't seem like a threatening individual so people feel it's OK to be happy and spread it your way.
I have a really good friend who lost his '72 M&M about 2 years ago (wife sold it behind his back while he was away - he got rid of the wife shortly after). He loves to be angry at the world, doesn't like to be happy and the hearse helped him fulfill a special individuality, be it a morbid individuality it set him apart from the others. I know for a fact he would be jumping around like a chihuahua on speed if he saw a nicely restored tastefully modded vintage hearse driving down the road. It's not something you see everyday. Right now the smarts fall in that category. Until they are more of a common sight most, maybe 95%, are going to act that way when they see one. MOST of the early adopters/owners DO have a special bond.
I have passed a smart owner that acted like I was a crazy person when I waved going by. To them, "it's just a car" that gets them from point A to point B. Now, after seeing the fabulous work you're doing on the M&M - I know your a car guy. Your outlook may change once you get the smart. At this point in time, in most areas of the US if pulled up in a parking lot with a perfectly restored vintage hearse and a brand new stock smart - the smart will get more positive happy attention from almost everyone. Now once that happens you will be angry.

That's the one thing I find weird as I have some decent vintage rides and the smart gets more people talking.