Horsepower wars used to belong strictly to two-door sports cars, but automakers have quietly poured supercar-grade power into practical four-door sedans instead. Electric motors, hybrid boost, and forced induction now let family-friendly cars post numbers that once required a six-figure exotic. Here are eleven four-door cars still sold new that top 500 horsepower.
1. Lucid Air Sapphire: The Most Powerful Sedan

The tri-motor Lucid Air Sapphire produces 1,234 horsepower, according to iSeeCars’ sedan horsepower rankings, making it the most powerful four-door sedan sold new in the United States. Two motors drive the rear wheels and a third handles the front axle.
Lucid pairs that output with a claimed sub-two-second 0-60 time, showing that a family sedan can now outrun most exotic coupes without sacrificing rear legroom, a trunk, or a set of usable back doors for growing families.
2. Audi RS e-tron GT Performance: Electric Launch Control

Audi’s electric flagship makes up to 912 horsepower with launch control engaged, a figure confirmed on the model’s production entry. Two motors, one on each axle, split that output between the front and rear wheels for consistent grip off the line.
That output rivals gas-powered supercars, yet the RS e-tron GT Performance still seats four adults and carries a full-size trunk beneath its low, coupe-like roofline, something few cars with comparable acceleration figures can offer buyers.
3. Mercedes-AMG S 63 E Performance: Hybrid Muscle Meets Luxury

The plug-in-hybrid AMG S 63 E Performance delivers 791 horsepower by combining a twin-turbo V8 with an electric motor mounted at the rear axle, per the S-Class model history.
Buyers get roughly the punch of a mid-engine supercar alongside massaging rear seats and a hushed cabin, since the S-Class platform underneath was never engineered to feel like a stripped-out track car in the first place. Owners can still summon that power on demand for a highway pass.
4. Porsche Taycan Turbo GT: Track-Ready Electric Sedan

Porsche’s quickest four-door makes up to 777 horsepower on overboost, a spec detailed in the Taycan model overview, with dual motors sending power to all four wheels through a two-speed rear transmission.
The Turbo GT has posted lap times that embarrassed gasoline sports cars costing twice as much, proving an electric sedan with four usable doors can now out-handle machines built purely for a racetrack, not a commute. Porsche also fits it with adjustable air suspension and huge carbon brakes.
5. BMW M5: Hybrid Power, Heavier Weight

The latest plug-in-hybrid M5 makes 717 horsepower from a twin-turbo V8 paired with an electric motor built into the transmission, according to the BMW M5 model page.
That hybrid boost pushes curb weight past two and a half tons, so the newest M5 trades some of its predecessor’s back-road agility for a straight-line power advantage that few sedans in its price range can match. BMW still offers a stiffer chassis setup for drivers who track the car.
6. Cadillac CT5-V Blackwing: Supercharged and Stick-Shift

Its supercharged 6.2-liter V8 makes 668 horsepower and can be paired with a six-speed manual transmission instead of the standard automatic, per the Cadillac CT5 model entry.
Cadillac remains one of the last automakers offering that much power with a clutch pedal, which has made the Blackwing a favorite among enthusiasts who still want to shift gears themselves in a modern performance sedan. Cadillac also fits Brembo carbon-ceramic brakes to help rein in that power.
7. BMW i7 M70: A Three-Ton Flagship That Flies

The electric flagship i7 M70 produces about 650 horsepower from its dual-motor, all-wheel-drive setup, a figure listed on the 7 Series model page alongside the rest of the lineup.
Despite weighing over three tons with its large battery pack, the i7 M70 can reach 60 mph in roughly three seconds, turning BMW’s limousine-length flagship into a genuine performance sedan rather than a purely chauffeur-driven car. BMW also equips the i7 M70 with rear-axle steering for tighter turns.
8. Audi RS7 Sportback: Sleek Roofline, Serious Power

The twin-turbo V8 RS7 makes about 591 horsepower, a figure detailed on the Audi A7 model page that covers the Sportback body style the RS7 is built on.
Its sloping fastback roofline sacrifices some rear headroom for style, but the RS7 still carries four doors and a wide hatchback trunk that many two-door sports cars with similar power figures simply cannot offer their owners. Audi also equips the RS7 with adaptive air suspension for daily comfort.
9. Mercedes-AMG GT 63 4-Door: Supercar Looks, Four Doors

AMG’s four-door coupe makes around 577 horsepower from a twin-turbo V8 mounted low behind the front axle, according to the Mercedes-AMG GT model page.
Mercedes stretched the two-door GT’s platform to fit a longer body with rear doors and seating for four, so buyers get supercar styling and a supercar-adjacent power figure without giving up everyday back-seat practicality for passengers. Mercedes also fits adaptive dampers so the extra length rides comfortably.
10. Maserati Quattroporte Trofeo: Ferrari Engine Inside

Maserati’s Ferrari-derived twin-turbo V8 makes about 580 horsepower in the range-topping Trofeo trim, per the Quattroporte model history, which traces the engine’s development back to Maranello.
That engine was built at Ferrari’s Maranello factory before being shipped to Maserati, giving the brand’s largest sedan a soundtrack and a power figure that few rivals near its price point can genuinely equal on paper. Maserati also wraps the cabin in leather and real carbon-fiber trim pieces.
11. Alfa Romeo Giulia Quadrifoglio: Ferrari DNA In A Four-Door

The Giulia Quadrifoglio pairs a twin-turbo 2.9-liter V6 with rear- or all-wheel drive, and horsepower has been rated as high as 505 in U.S. trim, per the Giulia (952) model history, though exact figures shift by market and model year. The engine was developed with input from Ferrari and sits low behind the front axle of a genuine four-door saloon body.
That combination gives buyers a compact executive sedan that can outrun many two-door sports cars while still carrying four adults and a full trunk, though Alfa Romeo’s smaller dealer network and mixed reliability record remain a real consideration before ownership.
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