Best deals on large and luxury cars

With large cars and luxury sedans, you can expect spacious accommodations, abundant features, comfortable road trip manners, and, as our latest analysis shows, big discounts.

Based on national incentives, we’re seeing 5 to 15 percent total savings available in these overlapping vehicle segments. Interestingly, just one luxury brand currently offers such deals: Cadillac. For savings from other brands, look to regional offers and lease deals.

These are the top deals on large cars and luxury sedans for May. All the cars listed below are 2015 models and ranked in alphabetical order. Specific pricing details on these and other trim variations are available on the model pages, along with complete road tests, reliability, owner cost, and other key information.

Also, check our Best New Car Deals, updated monthly, that lists features in only those models that earn a Consumer Reports recommendation, factoring road test score, reliability, and safety.

Buick LaCrosse

Thanks to its luxurious, well-finished, and roomy interior, and a supple ride, the LaCrosse is a very competitive large sedan. Buyers can choose from a powerful 3.6-liter V6 or a mild-hybrid eAssist four-cylinder that still delivers good performance, as well as 26-mpg overall. Its engine shuts off at idle to save fuel. Handling is responsive. Rear-seat room is generous, and the seats are well padded and comfortable, though the cockpit is narrow. Exterior styling compromises visibility fore and aft, though a standard rear-view camera is new for 2015. Controls are quite simple for a luxury car.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Buick LaCrosse, leather	6/1/15	$36,650	$35,936	$2,072

Cadillac XTS

Cadillac's large front- or all-wheel-drive sedan has a beautifully executed interior, perfect for limo duty. It's roomy, luxurious, and quiet inside, with comfortable seats. But the ride feels too ordinary for a luxury car, and the 3.6-liter V6 engine sounds coarse when prodded. The touch-activated Cue infotainment interface is unintuitive and frustrating to use, and the high rear deck impedes the view aft. The blind-spot warning system, which vibrates the driver's seat, helps a bit. A Vsport version with a twin-turbo 3.6-liter engine gives the XTS V8-like power. A standard built-in Wi-Fi hot spot for 2015 will please passengers on road trips.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Cadillac XTS	6/30/15	$45,655	$44,092	$3,340

Chevrolet Impala

One of our top-rated sedans, the Impala is roomy, comfortable, quiet, and enjoyable to drive. It even rides like a luxury sedan, feeling cushy and controlled. Engine choices include a punchy 3.6-liter V6 and an adequate 2.5-liter four-cylinder, both paired with a six-speed automatic transmission. The V6 accelerates and brakes capably, with secure and responsive handling. The full-featured cabin stays very quiet, with a sumptuous backseat and a huge trunk. Controls are intuitive and easy to use, but rear visibility is restricted. Advanced electronic safety features are readily available.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Chevrolet Impala 1LT	6/1/15	$30,135	$29,402	$2,379

Chrysler 300

Chrysler's roomy and luxurious 300 is one of the best large sedans on the market. Inside, you'll find plenty of space for five adults and a comfortable cabin with attractive trim. The punchy 5.7-liter V8 comes paired with a smooth eight-speed automatic transmission. But our preferred choice is the 3.6-liter V6, which also uses the eight-speed and brings a stately ride and responsive handling, along with a good 22-mpg overall in our tests. All-wheel drive is optional. The Uconnect touch-screen system is one of the best in the industry. The 2015 model got a mild styling update, a rotating knob for gear changes, a big driver-info screen in the gauge cluster, and a stack of modern safety gear.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Chrysler 300 Limited	6/1/15	$32,690	$32,084	$2,451

Dodge Charger

Like its cousin, the Chrysler 300, the Charger is a big, comfortable cruiser with an array of sophisticated technology on tap. Exterior and interior updates arrived for 2015. In addition to the perfectly adequate 3.6-liter V6, buyers can opt for a 370-hp 5.7-liter Hemi V8, and the power-mad can have a 485-hp 6.4-liter or the Hellcat's 707-hp supercharged V8. An eight-speed automatic is standard, and all-wheel drive is optional on some versions. Also new is forward-collision warning, which can slow or bring the vehicle to a full stop when a frontal collision appears imminent. The well-designed Uconnect touch-screen system is optional.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Dodge Charger SXT	6/1/15	$30,990	$30,286	$2,900

Ford Flex

The boxy Flex combines SUV-like versatility with carlike driving dynamics. The interior is versatile, with room for up to seven passengers in three rows. And its shipping-carton shape works well for cargo. Rear visibility is hampered by big head restraints, and the MyFord Touch interface is complicated and distracting. Handling is not particularly agile, but the ride is comfortable and the cabin remains quiet. The base 3.5-liter V6 has been updated and gets 18-mpg overall. Choosing the turbo V6 gives you quicker acceleration at a cost of just 1-mpg overall.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Ford Flex Limited	7/6/15	$38,595	$36,929	$1,631

Ford Taurus

The Taurus puts styling ahead of interior comfort and driver visibility, and the convoluted MyFord Touch control system doesn't help matters. Fuel economy from the 3.5-liter V6 is 21 mpg. The six-speed automatic can be slow to shift and is not very smooth. A more fuel-efficient turbo four-cylinder is available. Otherwise, the Taurus is quiet, rides comfortably, and has lots of features. Handling is responsive but not sporty, and the turning circle is wide. The SHO, with standard AWD, is quick but not engaging to drive. A rear-view camera is standard.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Ford Taurus SE	7/6/15	$27,880	$26,385	$3,812

Kia Cadenza

The Cadenza is a competent and credible competitor among large sedans. There's a lot here for the money, including a luxurious and quiet interior, a roomy backseat, responsive handling, and a comfortable ride. The 293-hp, 3.3-liter V6 engine and standard six-speed automatic combine to make a slick powertrain that delivers a competitive 22-mpg overall. Controls are refreshingly easy to use. A host of electronic safety aids are available, but some of the most useful ones are bundled into expensive options packages.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Kia Cadenza Premium	7/6/15	$35,725	$33,556	$2,047

Kia K900

Kia's new flagship is the brand's first rear-drive model and cousin of the Hyundai Equus. It is offered with a smooth and punchy 420-hp V8 or a 3.8-liter V6. The K900 is like a traditional freeway cruiser: more comfortable wafting along in a straight line than carving corners. The base infotainment system uses a 9.2-inch screen, and top trims get a 12-inch display. A central controller manages the menus and selections, but it takes some getting used to. The cabin is very roomy. Safety options include blind-spot monitor and lane-detection systems, rear cross-traffic alert, a wraparound camera, and front-collision warning.

Make & model	Expires	MSRP	Invoice	Potential savings off MSRP
Kia K900 Luxury	7/6/15	$60,800	$57,048	$3,797

More from Consumer Reports:
Hits and misses from Consumer Reports’ testing
Best & worst car values
Best new cars for under $25,000

Consumer Reports has no relationship with any advertisers on this website. Copyright © 2006-2015 Consumers Union of U.S.