Justin Pritchard / Associated Press UBS analysts disassembled a Tesla Model 3 to compare it with other electric vehicles. "Tesla delivered the best powertrain at the lowest cost," the investment bank told clients. But the car's "next-gen, military-grade" tech is the reason the base model will never turn a profit. Tesla has struggled to ramp up its production of the Model 3, which it has promoted as its first mass-market car. But with no $35,000 base model even available for pre-order, UBS analysts took it upon themselves to tear down a Model 3 to take a look under the hood — literally — and they say the sedan's powertrain blows competing models from BMW and Chevrolet out of the water.See the rest of the story at Business InsiderNOW WATCH: Is marrying your cousin actually dangerous?See Also:Your opinion matters — Join BI Insiders programElon Musk: Anyone who can do a better job as Tesla's CEO 'can have the reins right now'All the TV shows that have been canceled in 2018SEE ALSO: I just drove the $78,000 high-performance Model 3 — here's why it's my new favorite Tesla