Kia K4 vs. K5 Comparison: MSRP, MPG, & Size Differences for 2025

If you’re shopping for a sporty, fuel-efficient sedan for your Plainfield drives, it’s hard to beat the 2025 Kia K4 and the 2025 Kia K5. Designed for balanced performance, spacious cabin comfort, and cutting-edge connectivity, the Kia K4 and K5 ensure you have everything you need for your Manville travels. Compare new Kia sedans with the Kia K4 vs. K5 guide from Bridgewater Kia to discover which is right for your busy lifestyle. 

2025 Kia K4 vs. Kia K5 Specs: Performance

When comparing the 2025 Kia K5 vs. K4, many drivers start with performance. While both sedans offer two engine options that balance power with efficiency, those looking for thrilling acceleration will want to consider the 2025 Kia K5 lineup. Equipped with 2.5L four-cylinder engines, the Kia K5 boasts more horsepower and torque on both available powertrains than even the top-most Kia K4 trim. Compare the 2025 Kia K4 vs. Kia K5 specs for all the details:

2025 Kia K4 Engine Options

• 2.0L 4-Cylinder Engine: Capable of up to 147 hp and 132 lb-ft of torque

• 1.6L Turbocharged 4-Cylinder Engine: Capable of up to 190 hp and 195 lb-ft of torque

2025 Kia K5 Engine Options

• 2.5L 4-Cylinder Engine: Capable of up to 191 hp and 181 lb-ft of torque

• 2.5L Turbocharged 4-Cylinder Engine: Capable of up to 290 hp and 311 lb-ft of torque

2025 Kia K4 vs. Kia K5 Specs: Seating & Cargo Space

In addition to superior performance, the 2025 Kia K5 also provides more cabin and trunk space than the K4. That said, the Kia K4 interior isn’t far behind, providing the same amount of seating and only one less cubic foot of cargo space than the K5. See all the dimensions in the Kia K5 vs. K4 interior breakdown below:

2025 Kia K4 Interior Dimensions

• Seating Capacity: 5 passengers

• Headroom without Panoramic Sunroof (Front/Rear): 39 inches / 37.3 inches

• Headroom with Panoramic Sunroof (Front/Rear): 37.1 inches / 37 inches

• Shoulder Room (Front/Rear): 56.5 inches / 54.7 inches

• Hip Room (Front/Rear): 53.3 inches / 51.9 inches

• Legroom (Front/Rear): 42.3 inches / 38 inches

• Cargo Volume: 14.6 cubic feet

2025 Kia K5 Interior Dimensions

• Seating Capacity: 5 passengers

• Headroom without Panoramic Sunroof (Front/Rear): 40.2 inches / 37.8 inches

• Headroom with Panoramic Sunroof (Front/Rear): 38.4 inches / 37.4 inches

• Shoulder Room (Front/Rear): 58 inches / 56.1 inches

• Hip Room (Front/Rear): 56.6 inches / 56.6 inches

• Legroom (Front/Rear): 46.1 inches / 35.2 inches

• Cargo Volume: 15.6 cubic feet

2025 Kia K5 vs. K4: Amenities

No matter which sedan you choose for your Middlesex travels, you’ll find all the comfort, convenience, and connectivity technology you need at your fingertips. Some of the available features you can find on both the Kia K4 and K5 include:

• Dual-zone automatic climate control
• Heated, power-adjustable front seats
• 12.3-inch touchscreen infotainment display
• Wireless Apple CarPlay® and Android Auto™
• Kia Connect
• Wireless phone charger
• Bose® Premium Audio Systems

Compare New Kia Sedans at Bridgewater Kia

Want to continue your Kia K4 vs. K5 comparison? Read our great customer reviews, then compare new Kia sedans in person at Bridgewater Kia! Connect with us on Facebook, contact us online or by phone at 732-641-6500, and our experienced team will schedule a test drive for you at our Bridgewater dealership at your earliest convenience.