Fuel stops interrupt long drives, so range between fill-ups matters to many buyers. Some cars stretch modest tanks through sheer efficiency, while some trucks simply carry enormous reservoirs. Ten vehicles show both approaches, from sedans that run for hundreds of highway miles to pickups built around huge tanks.
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1. Jaguar XF: Diesel Champion
The XF 20d diesel was rated for 731 highway miles on a 17.4-gallon tank, the longest range in the Cars.com driving-range ranking.
That figure comes from 42 mpg on the highway multiplied by the tank size, as published in 2018. It is a highway-only calculation, not a combined-cycle or measured result, so mixed driving would shorten the distance. Even so, it set the high-water mark for the whole list. Buyers who read such rankings should treat the mileage as a comparison tool between models rather than a forecast for any single trip.
2. Kia Optima Hybrid: Hybrid Close Behind
Only two miles behind the Jaguar, the Optima Hybrid managed 729 highway miles from a 15.85-gallon tank.
A smaller tank than the diesel Jaguar carried makes that result more impressive, since efficiency did the work rather than fuel volume. Hybrid hardware let a mainstream midsize sedan nearly match a luxury diesel on paper, a notable outcome for the segment. Readers comparing hybrids with diesels will find that the gap between them was tiny, which says plenty about how far electrified powertrains had come.
3. Hyundai Ioniq: Frugal Hatchback
The Ioniq Blue posted 59 mpg on the highway, which stretched an 11.9-gallon tank to 702 miles.
Such range from a tank that small shows how little fuel the car burned at cruising speed. The hatchback’s strength lay in efficiency rather than capacity, so it suited long commutes where refueling stops were the main nuisance. Hybrid drivers often notice the same pattern, where steady highway speeds keep the battery and engine working at their most efficient and the fuel gauge barely moves.
4. Chevrolet Cruze: Diesel Compact
The Cruze diesel sedan was rated for 702 highway miles on a 13.5-gallon tank, tying the Ioniq’s distance.
Diesel economy gave this compact its reach, letting a modest tank cover a long motorway run. It remains one of the few small Chevrolet sedans to appear among the range leaders, with fuel efficiency doing nearly all of the work. Diesel compacts never became common in North America, so this entry serves as a reminder of an option that faded from showrooms but still ranks well.
5. Lexus LS 500h: Big Hybrid Sedan
The LS 500h combines a 22.2-gallon tank with a hybrid system for 640 miles of range.
Luxury flagships rarely chase efficiency, yet this Lexus pairs a large reservoir with electric assistance to travel far between stops. The result places a full-size executive sedan well above many compact rivals in the distance it covers. Shoppers weighing flagship sedans can read this as proof that a hybrid system and a big tank together can beat plenty of smaller, thriftier machines. Efficiency at this size is unusual, which helps explain why the model earns a place beside far smaller cars.
6. BMW 7 Series: Executive Distance
A 20.6-gallon tank gives the BMW 7 Series about 600 miles of range.
The flagship sedan relies on a generous reservoir rather than extreme efficiency, which suits long-distance cruising. Owners of this class tend to value fewer fuel stops on motorway journeys, and the numbers show the segment delivers that comfortably. Long-legged luxury sedans like this one appeal to drivers who log many motorway miles, where a bigger tank and smooth cruising cut down on time spent at pumps. For a car of this size, that distance is a strong showing against the segment’s rivals.
7. Mercedes-Benz S-Class: Flagship Stamina
The S-Class carries a 22.1-gallon tank that supports more than 550 miles of range.
Mercedes-Benz built its flagship to eat up long distances, and the tank size reflects that mission. A figure above 550 miles sits slightly under the Lexus and BMW entries, yet it still means a full day of driving before refueling. Comparing the three German and Japanese flagships side by side, the spread between them is modest, so personal preference matters more than range alone. Few other full-size luxury sedans manage to combine such plush comfort with that kind of reach.
8. Genesis G90: Korean Luxury
Genesis lists the G90 with a 19.3-gallon tank and about 500 miles of range.
The newest name in this group closes the sedan section with a respectable if lower figure. A smaller reservoir than its German and Japanese rivals trims the distance, though 500 miles still covers most single-day trips. Buyers shopping the segment should weigh that gap against price, comfort and equipment, because range is only one of many reasons to choose a flagship. Even so, the number is a solid result for a newcomer competing against long-established luxury nameplates.
9. Ford F-350: Super Duty Capacity
The F-350 can be fitted with a tank holding up to 48 gallons, among the largest on any pickup.
Capacity rather than efficiency defines this entry. Heavy-duty trucks burn fuel quickly when towing or hauling, so the oversized tank keeps work trucks productive between stops. Bigger tanks also add weight and cost, a trade-off buyers weigh against the convenience. Anyone planning to tow regularly should check the exact tank option on a specific truck, since dealers and trims vary widely in what is fitted at the factory.
10. Chevrolet Silverado: Tank Options
Chevrolet offers Silverado buyers tank options running from 24 all the way to 63.5 gallons.
The widest spread on the list reflects how many configurations the pickup comes in, from light-duty crew cabs to heavy-duty chassis. Only the biggest option earns the headline figure, so the actual tank depends heavily on the trim and cab chosen. Shoppers should confirm the tank size on the exact truck, because the advertised maximum applies only to certain configurations and not to every Silverado on a lot.
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