I'm kind of surprised at the attitude of many of the respondents to this thread, namely people condoning making a lot of noise to intentionally annoy their neighbors. Jokes about inviting friends over with loud bikes and cars to "get back" at the mean old lady who called the cops; besides the obvious immaturity of this, what about all of the
other neighbors who didn't call the cops? 
They all get a collateral dose of sht Harley sound just for being there?
I've been a gearhead all my life; work on my own cars, rebuilt several engines, etc., etc... Unless you live in some really rural area and have a lot of space around you, it's not fair to subject neighbors to auto repair sounds or loud pipes at any time, IMO. It's completely reasonable for people to expect not to be subjected to that kind of noise coming into their houses or for their neighbor's driveway to look like Tijuana with broken cars and tools laying around. That's just common courtesy.
It interesting to me that I live in a large, old apartment building in a big city surrounded by other big apartment bldgs. and I rarely hear loud partying sounds or barking dogs. Cars and bikes w/ really loud pipes are rare enough that I really notice them when I'm home. We are not allowed to work on cars in the parking garage, and I'm glad. It would look like the slums of Baghdad if we were. It's bad enough when people do it on the street. It just looks bad.
I'd love to have the dream house w/ huge garage/shop, but it would be insulated from neighbors somehow. Hidden, insulated, etc... The next best thing would be a separate shop in a remote location from the house. That is actually ideal. You will never find neighbors who want to hear a race car or bike run w/ open headers, even for 5 minutes. It's ear-splitting.
For lateapex, wouldn't a tiny electric winch solve your problem of loading your race car in street? How much could that cost, or rather how much could your race 911 weigh? Just seems like a logical solution.
