Making cars again- yes cars without airbags and other safety features.

Make more tanks again- no they can’t. The only tank factory in Russia has stopped working due to a lack of parts.

Aircraft, vehicles, missile systems can’t be produced due to the semiconductor bans.

And the article ignores the fact that while Russia can’t produce sophisticated weapons anymore, Ukraine is getting better and better equipment from ex soviet now up to NATO howitzers , self propelled artillery and APCs.