I was 16 in 1970 and in a kinda dream situation. My Dad was an executive at Chrysler, so I got to order my first car on the executive lease program. '70 Challenger SE, 383/auto, Top Banana with black vinyl roof, black/white houndstooth seats, pretty much every option but sunroof. I remember that you were restricted on an e-body to no larger than the 383 engine and no convertible/sunroof unless you paid a premium rate (which Dad wasn't going to do for me). During the summer, we cruised Woodward at least once a week. Gas was 19.9 cents at the Total station during the occasional gas war. In '71 I had a Charger 500, but in '72 went back to e-body with a red/white 340 'Cuda ('73 and '74 did Charger SE's). Build quality was worse on the e-bodies than the b-bodies. Do I wish I had them back? Yes, and I'm looking for them.
Even at the time, you didn't see many Hemi cars. They were an expensive option, tough to keep tuned, and not a real pleasant daily driver at least in the snow and cold areas. A 440+6 was almost as fast and less tempermental. The guys that ordered the Hemis were the more serious racers and didn't want the weight and flex of a convertible. It's interesting that at the time my dream car was a Chrysler 300 letter car (in '76 I finally got a '57 300-C). I remember going to the 300 meets at the time and we'd wonder if the then current cars would ever be collected or even last. So yeah, I'm sure we'll be collecting the SRT cars in 20-30 years.
Ty