Just in case you didn't notice the link in the right hand column, Honda has a site that will cover the restoration of N600 Serial #1
, the first Honda automobile ever imported to the USA. http://www.serialone.com/
Watching the video made me all nostalgic. In 1970, my wife and I bought our first new car, a champagne beige N600 for $1600. No power steering, motorcycle transmission (no synchromesh), and needless to say, no air conditioning — but we never needed A/C in Monterey.
I put heavier oil in the front struts, replaced the rear shocks with Konis, installed a hotter domestic market camshaft and larger carburetor. With an air-cooled 2-cylinder 600cc engine (smaller than most motorcycles these days), it would do 90 mph on a straight, and returned ~33 mpg around town, 44 mpg on the highway. Sold it in 1978 at ~90,000 miles for $1000 — the lowest depreciation on any automobile that I have ever owned.
The rear seats weren't "magic", but were only held in by 2 thumb nuts, so it took only a couple of minutes to remove the rear seat back and cushion, and haul stuff. The record was a 6' Christmas tree — pretty amazing for a car only 10 feet long!