New concepts from Mercedes, BMW, Lexus, Audi, and other automakers took center stage, along with some real surprises.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Concept cars are designed to be flights of fancy—showpieces that ...

Proofs of concept are common in the tech space. Among other applications, they’re an effective way to demonstrate the possibilities and applications of a proposed new tech product. Additionally, ...