“Any newly graduated mechanical engineer could design one that “is” “5 star crash rated”. No new technology at all needed there.”
“There is this metal called “aluminum”, which takes care of the “very heavy”. And as said previously, “peak” power would be supplied by an accumulator.”
Really?
How much do you think that 5 star accumulator is going to weigh? You are going to need to either make it very small but that is going to require extraordinary pressure and materials to match or large but then you have the problem that wall tension is based on both pressure and area and you will still need very thick heavy walls.
Where is this acculator and the insulation to keep it hot going to sit?
As far as using aluminium, it would make more sense to spin turbines and use the power to reduce aluminum and run cars on mechanically rechargable aluminium batteries.
LOL. You're obviously not familiar with the new research and engineering in ultra-high pressure composite tanks, good to 20,000 psi, and weigh virtually nothing. Think "carbon fibers" or some of the new VERY high tensile strength polymers.
"Where is this acculator and the insulation to keep it hot going to sit?"
Probably right next to the E-Cat. Saves on insulation.
"As far as using aluminium, it would make more sense to spin turbines and use the power to reduce aluminum and run cars on mechanically rechargable aluminium batteries."
Not really. Remember, the topic we're addressing here is what can be built QUICKLY that doesn't require lots of additional technology. Ultimately, a steam/hybrid electric "does", I think, make the most sense. But that will take longer to get out of development.