Used 2018 Cadillac CTS Sedan Trims Comparison

The base trim comes with a turbocharged four-cylinder engine (268 hp, 295 pound-feet of torque), an eight-speed automatic transmission, 17-inch wheels, Brembo front brakes, rear parking sensors, a rearview camera, keyless ignition and entry, dual-zone automatic climate control, power-adjustable front seats, driver-seat memory settings, simulated leather upholstery and fixed rear seats with a trunk pass-through.

Technology features include OnStar telematics (with 4G data connectivity and Wi-Fi capability), wireless smartphone charging, Bluetooth, the Cadillac User Experience (CUE) infotainment system (without navigation), an 8-inch touchscreen interface, voice controls, three USB inputs, Apple CarPlay and Android Auto, and an 11-speaker Bose surround-sound audio system with satellite radio.

For this base CTS, buyers can add a Seating package that includes leather upholstery, heated and ventilated front seats, split-folding rear seatbacks, a power-adjustable and heated steering wheel, and LED interior ambient lighting.

Luxury offers the option of a 3.6-liter V6 (335 hp, 285 lb-ft) plus adaptive xenon headlights with auto high beams, a panoramic sunroof, a navigation system, a 13-speaker Bose sound system and a variety of driver safety aids (automatic wipers, lane departure warning and intervention, forward collision alert, blind-spot monitoring and rear cross-traffic alert). The optional seating package from the base CTS is included in the Luxury.

An optional V-Sport package (not to be confused with the V-Sport trim level) bundles 18-inch wheels, high-performance brakes and tires, and a sport-tuned suspension with adaptive dampers.

Premium Luxury fits the CTS with the adaptive suspension dampers, 18-inch wheels, a self-parking system (both parallel and perpendicular), three-zone automatic climate control, heated rear seats, a rear camera mirror, a head-up display, a top-down parking camera system, a power rear sunshade (rear side-window shades are manual), and illuminated door handles and front doorsill plates.

There's an optional Driver Assist package for the Premium Luxury trim that adds adaptive cruise control and a collision mitigation system with automatic braking. Other options include 20-way-adjustable front sport seats and a configurable digital gauge cluster.

The CTS V-Sport comes with a turbocharged 3.6-liter V6 engine (420 hp, 430 lb-ft) and starts with the Luxury trim level's standard features (minus the sunroof) and adds the self-parking system, 18-inch wheels with summer tires, upgraded brakes, a sport-tuned suspension and steering system, a driver-selectable Track mode for high-performance driving, an electronic limited-slip rear differential and an upgraded cooling system. All-wheel drive is not available.

At the top of the range is the CTS V-Sport Luxury that adds just about all of the standard and optional features of the Premium Luxury trim, including the sunroof.