Part of the reason I didnt like those generations as much was because they came out in my late high school and college years when I was playing games that were pushing the needle a bit more
(Monsters with a Cubic Counter cannot attack, also negate their effects.) If this card is treated as a Continuous Spell Card by this effect, during your Main Phase: You can Special Summon this card from your Spell & Trap Zone
The crew 1 does let you play more of the clunky vehicles, and therefore have a deeper well to pull from, however, so with that in mind I think I would give the overall nod to Astor if you're looking at Boros vehicles
if promos and themes light your fire, the Collection Box is the clear choice
(There's also plenty of overlap between the clans, so your Temur deck is also likely to have some prowess creatures
What's in a Strixhaven Collector Booster