A massive 62-mile electric range and a sumptuous, high-tech interior move the new 2021 Mercedes S 580 e plug-in hybrid to the front of its class
The BMW 7 Series hybrid isn’t as comfortable as its Mercedes S-Class rival, but a big price difference tips the balance in its favour
The flagship Audi A8 60 TFSI e is a great showcase for how well suited plug-in hybrid power is to luxury limousines
