The 2027 Kia K4 and K5 in Hamburg give Reading and Allentown drivers two appealing Kia sedan choices. K4 combines a $22,390 starting MSRP with 38.0 inches of rear legroom; K5 brings a larger body, available GT-Line all-wheel drive and a 290-hp GT model.

Quick Take: Two Good Kia Sedan Choices

K4 fits the buyer who wants a lower entry price, compact dimensions and room for adult rear passengers. K5 fits the buyer who wants a larger driver’s space, available AWD or GT performance. Both provide a 12.3-inch touchscreen, wireless smartphone integration and distinct comfort upgrades. Outten Kia sells both, so the choice can follow the way you drive and carry passengers.

K4 Overview: Compact Size and Rear-Seat Space

The K4 sedan is 185.4 inches long, with 38.0 inches of rear legroom and a 14.6-cubic-foot trunk.

Its five trims run from LX through GT-Line Turbo. LX starts at $22,390; EX at $24,590 adds heated SynTex seats, dual-zone automatic climate control and a wireless charger. GT-Line Turbo at $28,490 has 190 hp, an eight-speed automatic, navigation, Harman Kardon audio and a wide sunroof. The K4 trim guide sets out those choices together.

K5 Overview: More Driver Space and Performance Choice

The K5 is 193.1 inches long and has 46.1 inches of front legroom, with a 15.6-cubic-foot trunk.

K5 LXS starts at $27,690 with a 186-hp 2.5L engine. K5 GT-Line starts at $28,690 and offers all-wheel drive; K5 GT starts at $33,790 with a 290-hp turbocharged 2.5L engine and eight-speed dual-clutch transmission. A driver choosing a larger sedan for I-78 travel can find a comfort or performance direction within that range.

Powertrain Comparison

K4 offers 147 or 190 hp; K5 offers 186 or 290 hp, with AWD available on K5 GT-Line.

K5 GT-Line AWD gives a Quakertown or Lebanon commuter an additional drivetrain choice. K5 GT is a front-wheel-drive performance model, with its appeal coming from the 290-hp turbo engine and dual-clutch transmission. K4 GT-Line has its own sport-tuned multi-link rear suspension with the economical 2.0L engine; K4 GT-Line Turbo adds stronger power and standard premium equipment.

Interior and Technology Comparison

K4 provides more rear legroom; K5 provides more front legroom, shoulder room and trunk volume.

K4’s 7.7-inch shorter body is useful for compact parking, while its rear seat gives adults 2.8 inches more published legroom than K5. K5 adds 3.8 inches of front legroom and another cubic foot of trunk volume. For a Blue Marsh Lake day trip, K4 favors rear-passenger stretch-out room; K5 gives the front occupants a larger space and room for an extra measure of luggage.

Pricing and Value

Both models’ starting prices use the same base-MSRP basis, excluding destination and handling.

The K4 LX starts $5,300 below K5 LXS, while K4 GT-Line Turbo and K5 GT-Line begin just $200 apart. Their equipment and drivetrain choices differ, making that close starting price a useful cross-shop. Destination and handling is $1,245 for either sedan; taxes, title, license, options and dealer charges are additional. Actual dealer prices vary.

EPA Fuel Economy: K4 and K5

The 2.0L K4 has the highest EPA highway estimate in these sedan ranges at 39 MPG. K5 LXS offers 37 MPG highway, while K5 GT-Line AWD combines all-wheel drive with a 27-MPG combined estimate. Engine and drivetrain choices affect fuel use as well as performance.

EPA estimates are for the listed 2027 sedan powertrains; actual mileage varies. K4 EPA ratings and K5 EPA ratings.

Where Each Kia Wins

K4 puts compact dimensions, rear legroom and accessible pricing together; K5 offers a larger front cabin and more drivetrain and performance choice.

Which Kia Sedan Fits Your Daily Drive?

Passenger priorities and the equipment you enjoy determine the more appealing Kia for a daily Route 61 or I-78 drive.

K4 is an appealing match for a Berks County household that regularly fills the rear seat and wants a compact car. K5 suits a Lehigh Valley driver who values front-seat space, a larger trunk or an AWD sedan. Both have trims with heated front seats and wireless phone charging, and both offer a more powerful turbo model. The K5 research hub and K4 specifications provide the full model details.

K4 vs K5 FAQs

These sedans are compared here for passenger travel and luggage. The K4 owner’s manual does not recommend trailer towing; its vehicle-specific label governs occupants and cargo.

Explore the K4