I have been fortunate enough to have 3 day one experiences....
#1 was a old IM Speedster that I bought completely disassembled but in a new Porsche Red Glasurite paint job. So, it came home on a flatbed. Every try to match up all the dashboard wires to all the correct locations when somebody has painted the entire harness red? Curse you Jim Adams! Oh by the way, when I looked at the odometer in the box it said 32 miles. I figured the thing didn't work. When I pulled the brakes, well rusted, they were brand new. The clutch was brand new. The engine was supposed to be 110 hp, I would guess 55 hp was closer, curse you Jim Adams. But the car was new, other than it had set in a field for 10 years and had only the rusted shells of floorpans.
#2 Was another old IM, bought it in South Houston, 30k miles, faded paint, faded interior, small dual carb engine, ran like a watch. Drove it home, had it painted, put in a new interior, put on a new top....great little car
#3 Spyder by TR, bought it without inspection from LA, had it trucked in. Door to door shipping means something different to Intercity than me...so I picked it up 2 miles up the road, truck wouldn't fit down our road....no electrical other than starter and ignition, truck dumped it right in rush hour, no turn signals, no brake lights...1600cc engine fired right, up ran like total crap...drove it home and then discovered one of the linkages had popped off a carb, so was running on one carb....installed the linkage, ran great, but immediately noticed 1600cc wasn't going to cut it....
All three were bargains, and all were great fun, but Jim Adams is still not on my Christmas list and I bought #1 from him in 1990!