It’s been nearly a year since Audi discontinued the A4 to make room for the A5. The sedan (technically a liftback) and wagon didn’t initially have charging ports, but now the plug-in hybrids have arrived. Available exclusively with Quattro, these electrified variants aim to offer the best of both worlds, excellent efficiency without compromising (too much) performance. The PHEVs share a turbocharged four-cylinder 2.0-liter gasoline engine.
