Sedans don’t headline dealer lots anymore. Crossovers grabbed the spotlight. But for anyone who cares about road feel, quiet cabins, and real highway range, a good sedan still makes daily life better. The trick is picking one that won’t punish the wallet after the honeymoon. That’s where measured reliability – not anecdotes – matters.Below is a ranked shortlist of used luxury sedans that keep showing up for owners. It moves from least to most reliable based on J.D. Power’s Quality & Reliability score for a specific model year, then weighs RepairPal’s reliability data and annual repair costs, plus real-world high-mileage reports from owners’ forums and communities. Each entry also highlights engines, drivetrains, and tech that enthusiasts care about. A few excellent sedans (e.g., some Lexus GS/LS and Genesis years) aren’t included because J.D. Power didn’t publish a model-level Quality & Reliability score for those years, which would break the ranking method. 2018 Volvo S90 J.D. Power Quality & Reliability: 78/100 Volvo The S90 nails Scandinavian calm: upright seating, clean lines, Pilot Assist on the highway, and a vault-quiet ride. For 2018, U.S. models use the 2.0-liter Drive-E four-cylinder in turbo (T5 FWD) or turbo-and-supercharged (T6 AWD) form, paired with an 8-speed automatic. The T6’s 316 hp and broad torque band pull well at altitude. Chassis tuning leans comfort over edge; adaptive dampers improve body control on rough interstates. Inside, the Sensus touchscreen is powerful, but it can feel slow on cold starts.J.D. Power’s 78/100 keeps the S90 in the “average-to-good” range for reliability. RepairPal lists the S90’s average annual repair cost at about $522, with Volvo brand reliability rated 3.5/5 – average ownership costs and a low chance of severe issues (9%). Owners with serious miles exist, and there’s proof of that on Reddit. 2018 Mercedes-Benz E-Class J.D. Power Quality & Reliability: 79/100 Mercedes-Benz The W213 E-Class debuted with a tech-rich cabin and a big step in driver assistance. The E300 uses the M274 2.0-liter turbo four (241 hp), later replaced by the E350’s uprated four; six-cylinder choices include the E400/E450 3.0-liter V6 bi-turbo and AMG variants. A 9-speed automatic and optional 4MATIC AWD make it a consummate cruiser. It feels light on its feet for the class, with strong NVH control and long-legged gearing that keeps revs low at speed.For 2018, J.D. Power rates Quality & Reliability at 79/100. On costs, RepairPal pegs E350/E-Class maintenance at around $788 per year; brand-wide, Mercedes sits near the top end for ownership cost, so budgeting for proactive maintenance pays. High-mileage drivers report solid service from the W213 when maintained on schedule. 2018 Infiniti Q50 J.D. Power Quality & Reliability: 79/100 Via: InfinitiThe Q50 blends sharp steering with one of the best engine lineups in the segment. The venerable VQ37VHR 3.7-liter V6 (older trims) is a proven workhorse; newer cars feature the VR30DDTT 3.0-liter twin-turbo with 300 or 400 hp (Red Sport), all with a 7-speed automatic and optional AWD. The chassis is neutral and stable at speed. Direct Adaptive Steering remains polarizing, so many enthusiasts prefer conventional steering setups.J.D. Power’s Quality & Reliability for the 2018 Q50 sits at 79/100. RepairPal shows average annual repair costs around $648, putting it below the luxury midsize average. As for longevity, there are plenty of high-milers, like this 200k-mile owner. Expect more upkeep on early VR30 turbos and cooling; the older naturally aspirated 3.7 is the safe long-haul bet. 2017 Lincoln Continental J.D. Power Quality & Reliability: 80/100 Via: Lincoln The return of the Continental brought quiet road manners and lounge-like seats. Under the hood: a 3.7-liter V6 (base), 2.7-liter twin-turbo V6, or a 3.0-liter twin-turbo V6 (Reserve/Black Label) sending power through a 6-speed automatic to FWD or AWD. The chassis soaks up distance and shows its best side on the highway. Revel audio and massaging seats are road-trip weapons.J.D. Power’s Quality & Reliability score is 80/100 for 2017. RepairPal lists typical Continental annual repair costs around $513 (model-level), with Lincoln brand costs higher than average overall; note that 2017 model-year data can show wider variance as these cars age. High-mile examples exist – including livery and road-warrior owners – like a reported 360,000-mile 2017 Continental. Tech notes: prioritize clean service history, camera/APIM recall updates, and avoid neglect on the 3.0T’s cooling and oil-change intervals. 2018 Acura TLX J.D. Power Quality & Reliability: 80/100 AcuraAcura aimed the TLX squarely at the dependable end of the segment. Two heartbeats define it: a 2.4-liter inline-four with an 8-speed DCT (balanced, rev-happy, simpler) and a 3.5-liter SOHC V6 with a 9-speed automatic (stronger, quicker, but pickier about maintenance). SH-AWD (V6) adds traction without drama; A-Spec brings firmer damping and a sweeter steering wheel. Cabin tech is straightforward, and the seats hold up over time.With a J.D. Power 80/100 Quality & Reliability score for 2018, the TLX is a safe bet. RepairPal estimates annual repair costs around $440, notably lower than the luxury midsize average. Want real-world miles? See owners cross 100k+ and shop 100k-mile cars with confidence when serviced. If longevity is the goal, the 2.4/DCT combo keeps things simple; if you prefer the V6, proof of meticulous fluid service (especially for the ZF 9-speed) matters. 2017 Volvo S60 J.D. Power Quality & Reliability: 81/100 Volvo The P3-generation S60 blends Scandinavian comfort with sturdy long-trip chops. Most late S60s use Volvo’s 2.0-liter Drive-E turbo with an 8-speed automatic (FWD or AWD); some trims kept the older 2.5T five-cylinder. Steering is accurate, and the cabin is surprisingly premium.J.D. Power clocks the 2017 S60 at 81/100 for Quality & Reliability. RepairPal reports the S60’s average annual repair cost to be around $750, with Volvo’s brand reliability at 3.5/5 and a low severity rate. As for miles, owners do push them, like this 200k-km reliability owner. Keep up on timing components (where applicable), PCV service, and transmission fluid; the cars repay routine care with long service. 2018 BMW 5 Series J.D. Power Quality & Reliability: 82/100 BMW The G30 5 Series returned BMW to effortless long-distance pace. Powertrains include the 530i (2.0-liter turbo, B48) and 540i (3.0-liter turbo inline-six, B58), both with a crisp 8-speed ZF and available xDrive. The car is light on its toes, quiet on coarse asphalt, and happy to eat states. The B58 has earned its reputation for stoutness; the B48 also does well when given clean oil and cooling system attention.J.D. Power scores the 2018 5 Series at 82/100 for Quality & Reliability. On costs, RepairPal shows a 530i averaging about $620 per year; other trims (e.g., older 535i) can be higher. High-mileage threads abound, including buyers targeting 200k-mile 5ers. Want a sleeper? A stock 540i with maintenance records is the future classic of this generation. 2017 Audi A6 J.D. Power Quality & Reliability: 85/100 Audi The C7 A6’s chassis still feels fresh: a taut, quiet, Autobahn-bred sedan with real luggage space. U.S. favorites include the 3.0T supercharged V6 (333 hp) and 2.0T four with a Tiptronic 8-speed and available quattro. The 3.0T’s instant mid-range and balanced front-rear weight split make it a great daily that loves back roads. The cockpit is old-school Audi: clean, solid, and built to last.For 2017, J.D. Power rates the A6 at 85/100 on Quality & Reliability. RepairPal puts A6 annual repair costs at around $913, with the A6 Quattro a bit higher at $1,056; budget accordingly and prioritize service history. Mileage? Plenty of 3.0T cars cross 200k with maintenance, like this 200,000-mile A6 owner. 2017 Lexus IS J.D. Power Quality & Reliability: 89/100 Lexus The third-gen IS gives enthusiasts options: IS 300 (2.0T RWD / 3.5 V6 AWD) and IS 350 (3.5-liter V6, 306 hp). The 8-speed automatic (RWD) shifts cleanly; AWD versions use a 6-speed. The steering is tidy, the chassis feels buttoned-down, and the cabin materials hold up. The naturally aspirated V6 trims are the long-term sweet spot for low drama and a great sound.J.D. Power’s 89/100 Quality & Reliability score for 2017 puts the IS near the top of this segment. RepairPal’s data shows IS-family annual costs in the ~$543 range for IS 350 (older IS250 averages even lower), aligning with Lexus’s excellent brand standing. High-mileage comfort? Check owners pushing past 250k miles with routine service. Avoid neglect on carbon buildup for early direct-injection fours; the V6 cars remain the safe, satisfying bet. 2018 Lexus ES J.D. Power Quality & Reliability: 90/100 Lexus If the mission is “buy it, service it, forget it,” the ES350 sits at the top. The 2GR-FKS 3.5-liter V6 (268–302 hp depending on year) and 6-speed automatic (2018) prioritize smoothness, not drama. Ride quality is serene, NVH isolation is top-tier, and the car shrugs off long commutes. The cabin’s materials age well and keep squeaks at bay. The hybrid ES300h is similarly stout if you prefer mpg over mid-range surge.J.D. Power assigns the 2018 ES a 90/100 Quality & Reliability score. RepairPal rates the ES360/ES350 line 4.0/5 with typical annual costs around $468, far below class averages. High-mileage proof points are everywhere: ClubLexus owners discuss 300k-mile ES cars and buying decisions at extreme mileage. If you’re chasing a quiet, low-stress 200k-mile companion, the ES is the one to beat.Source: J.D. Power, RepairPal.