2021 Kia K5 vs. 2021 Nissan Altima in Mississauga, ON

Kia K5 vs. Nissan Altima at 401 Dixie Kia

Crossovers may increasingly be the rage for many drivers thanks to their versatility, but nothing can quite match the luxurious style and driving experience that a sedan can deliver. Few models represent this ideal better than the Kia K5. There’s a lot of competition out there, and Nissan is a consistent Kia competitor, with their own lineup that matches up against the Kia models. We’ve put the all-new 2021 Kia K5 up against a legend in the Nissan lineup, the 2021 Nissan Altima, to see which one deserves your time and attention for top tier sedan driving pleasure. Explore below as we compare these two worthy models over design, performance, safety features and more, then shop for a Kia K5 all for yourself here at 401 Dixie Kia!

View similar comparisons here: K5 vs. Accord

Exterior Design & Features

Kia K5 Exterior

While incredibly close in dimensions, it’s the actual style of the design that separates these two vehicles. It’s accurate to call the K5 a sedan, but that doesn’t paint the full picture, make no mistake, this is a performance sedan. Cut with incredibly sleek and sporty lines, from the front to the back, nobody will be mistaken for this sport sedan’s unmistakable design style that exudes performance-ready qualities.

Nissan Altima Exterior

Decently stylish in its own right, but the Nissan Altima is more concerned with being an unassuming sedan option that fits in perfectly for those who need an everyday driver, whether that’s just going to work or getting the groceries. It’s a vehicle for a vehicle’s sake, fitting in with the modern sedan style, but never taking it up a notch like the K5’s sporty design so effortlessly presents.

Specifications:2021 Kia K5 LX 2021 Nissan Altima SE
Length (mm/in) 4,905 / 193.1 4,900 / 192.9
Width (mm/in) 1,860 / 73.2 1,852 / 72.9
Height (mm/in) 1,445 / 56.8 1,452 / 57.2

Interior Design & Features

Kia K5 Interior

Neck and neck are the K5 and Altima when it comes to the cargo able to be loaded inside, while the passenger space clearly shows the Kia with an advantage over the Nissan. From there it all comes down to the features offered inside. Keeping you comfortable no matter the Mississauga climate, heated and air-cooled front seats alongside a heated front steering wheel will keep you toasty warm or comfortably cool. Tech features include a 10.25-inch multimedia screen for your entertainment and navigation needs, with a Bose premium sound system for high quality audio.

Nissan Altima Interior

The Altima is like the K5, loaded with advanced tech and with many similar attributes and features. Also found inside the Altima is a Bose sound system, heated front seats and heated steering wheel. As with all modern vehicles, the Nissan has its own touchscreen display for your connective purposes, but only boasts an 8-inch screen compared to the K5’s 10.25-inch screen. For trunk space, seating and tech, the Altima provides ample room and opportunity.

Specifications: 2021 Kia K5 LX 2021 Nissan Altima SE
Head Room (front) (mm/in) 1,020 / 40.1 966 / 38.0
Head Room (rear) (mm/in) 960 / 37.8 932 / 36.7
Shoulder Room (front) (mm/in) 1,474 / 58.0 1,478 / 58.2
Shoulder Room (rear) (mm/in) 1,424 / 56.0 1,450 / 57.1
Hip Room (front) (mm/in) 1,438 / 56.6 1,390 / 54.7
Hip Room (rear) (mm/in) 1,437 / 56.5 1,385 / 54.5
Leg Room (front) (mm/in) 1,170 / 46.0 1,114 / 43.8
Leg Room (rear) (mm/in) 895 / 35.2 895 / 35.2
Passenger Volume (L/cu-ft) 2,982 / 105.3 2,854 / 100.8
Cargo Capacity (L/cu-ft) 434 / 15.3 437 / 15.4

Performance & Capability

Kia K5 Performance

Now this is where the K5 truly outshines the Altima, seeing its sport performance side truly blossom. Their base level engines are quite similar, but the Altima only has the one engine, while the top-level GT K5 trim boasts a Theta 2.5L-II Turbo engine that reaches a powerful 290 horsepower and 311 lb-ft of torque!

Nissan Altima Performance

This all-purpose Altima is focused around its Intelligent All-Wheel Drive (which the K5 also has its own version of all-wheel drive) to take on any environment. It may not be able to reach the performance levels that the K5 can, but presents its own efficient and seamless driving experience through the Xtronic transmission that aims for you to spend less time at the pumps.

Specifications: 2021 Kia K5 LX 2021 Kia K5 GT 2021 Nissan Altima SE
Engine 1.6L Gamma-II Turbo GDI Theta 2.5L-III Turbo GDI 2.5L DIG DOHC 16-valve 4-cylinder
Horsepower 180 290 182
Torque (lb-ft) 195 311 178
Transmission 8-speed automatic 8-speed Dual Clutch CVTCS
Fuel Efficiency (city/highway) (L/100 km) 9.2 / 6.9 TBD 9.3 / 6.7


Kia K5 Safety

The Kia K5 may be a sedan with sport performance at front-of-mind, but that doesn’t mean it lacks in safety. That couldn’t be further from the truth with highlighted features like Forward Collision-Avoidance Assist (with Junction Turning Function). You’ll avoid unexpected collisions thanks to its forward-facing camera and radar. Safe Exit Assist uses radar as well to detect any vehicles approaching, giving you an alert so you truly know when you can safely exit.

Nissan Altima Safety

Like what Nissan prides themselves on, the Nissan Altima features vast safety and driver assistance features. Nissan Intelligent Mobility helps to monitor around you on your drive, while additional tech like ProPILOT Assist provides driver assist out on the highway. An Intelligent Around View Monitor gives you a 360° look around your Altima, perfect for parking. Loaded with safety tech just like the K5, the Altima endeavours to keep you safe on every drive.

Kia K5 vs. Nissan Altima Verdict

The 2021 Kia K5 starts at $29,595* and the 2021 Nissan Altima starts at $29,498*. Both are incredibly similar sedans in a lot of aspects, but there’s a few major differences that help set them apart. The Kia K5 leans heavily into being not just a sedan, but a sport sedan with incredible performance potential out of its top tier GT trim. The Nissan Altima can’t match the K5’s performance abilities, existing as a typical everyperson modern sedan. If you want that extra level of driving pleasure and sport experience out of your sedan, the 2021 Kia K5 is the car for you!


Come to 401 Dixie Kia here in Mississauga for your Kia needs across the Greater Toronto Area. Shop our K5 inventory, alongside the rest of our car, SUV and van options. For any of your current service or part/accessory demands, our dedicated departments are ready and waiting to serve, so contact us, today! 

Browse more Kia comparisons vs. Nissan models here: 

2021 Kia Forte vs. 2021 Nissan Sentra

2021 Kia Seltos vs. 2021 Nissan Kicks

2021 Kia Sportage vs. 2021 Nissan Rogue

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