These seem like orthogonal competencies though. Technologies to sell at volume don't match technologies for small-scale design and engineering.

> This is several years of development which amounts to wasted resources in light of the manufacturing setbacks of their truly disruptive product.

Different teams. Model 3 design & engineering was completed in July.

The folks working on the Roadster design would've otherwise been idle (or mostly idle except for maybe any refinements that might've been necessary due to production process limitations/issues) during Model 3 production ramp.

I'd place good money on them having already produced the first draft of this design as part of the whole lineup remodel that did away with the Model S's nose-cone prior to the Model X launch. i.e figuring out a "Tesla" design language that worked across the S, X, 3, and R (and perhaps the Semi, to some degree)

While I actually agree with Animats, I do feel the need to point out that I do not agree that the Model 3 is the "truly disruptive product" vs. this newly announced Roadster... this car has a 620 mile range... that is "truly disruptive"; the Model 3 only has at its best a 334 mile range: this is finally an electric car that can rival the long-range convenience of a gasoline vehicle (as no matter what the range, filling up your take with gas is essentially instantaneous vs. trying to charge a battery).