The new battery design, that would halve the cost per kwh is based on a new form factor and quite some new technologies like the improved nickel and the absence of Cobalt. Further the continuous motion production lines will increase production capacity by a factor of seven at the same factory footprint.
Earlier Musk responded to a question on Twitter about designing a smaller European style Hatchback “probably a good one to design and & engineer in Germany”.
The sketch comes from a Chinese social Network WeChat on which Tesla was searching for design talent for their Shanghai Giga Factory.