Recently, I've been afflicted by a disease common to many men (esp. expats it seems) in Beijing: I'm obsessed with an old sidecar motorcycle called the Chang Jiang 750. It's a copy of a 1938 BMW R71 motorcycle that was made in large quantities for the Chinese army through the second half of the twentieth century. Shops around town restore the surplus bikes and make them look absolutely gorgeous. A fully loaded and sweetly restored bike might run 30000-40000 RMB+ (about USD $4500-6000); although this is expensive by local standards, I consider it something of an affordable luxury.
The bikes aren't super fast (they have a 746cc engine creating 24 or 36 horsepower), they leak oil, and you can't ride them on the freeways in Beijing, but I think they're just plain cool. (I'm torn between the charcoal grey and the deep blue. Of course, black just looks great too.) Plus, since they're older than thirty years old, you can export them back to the US afterwards. I just need to convince myself and the family this is a good idea...
There are quite a few websites on these motorcycles. Here are a few I found useful and seemingly trustworthy.
(All photos from cj750.net -Big Bill's)