DAMNIT!
Answers for the unanswered:
>> For a 12-year period, what particular post-war American vehicle's base price never rose above the initial year's tag?
Cadillac Eldorado, 1959-1970 In '59, price of either the hardtop or convertible was $7401. Wasn't until the '71 convert that the base price was higher ($7751). This always struck me as weird because it was NOT a low-priced car to begin with and from '61-66 all Eldos were converts- lots of potential for inching the price up.
>> For a 12-year period, where, when & why were a particular group of vehicle's trunks welded shut to comply with 'wheres' regulations?
1941-1952 NYC taxi regulations required a trunk rack and all taxi's trunks were welded shut. I don't know any more on this one without research, don't seem to make much sense.
>> Name the year & make of the first American internal combustion automobile.
Henry Nadig of Allentown PA built a running, drivable internal-combustion car in 1890 or 1891, after starting experimenting in 1889. In the late '90s he built a handful of trucks, but perhaps more than anything he neither patented or published his accomplishments, and the Nadig has slipped thru the cracks of general knowledge. I have 1 pic of the car in later years & in disrepair. Googling revealed a transportation museum due to open in PA in 2007 will have on loan the remains of the Nadig car.
>> A particular vehicle set a closed-course speed record that stood for over 20 years, earning the track the moniker "Worlds Fastest Speedway". Name the track.
Packard Proving Grounds. Packard had a 2.5-mile banked concrete oval in addition to the standard assortment of car testing roads, etc. A 1928 Miller Special set the record @ 148 MPH.