Denza B5 vs Mazda CX-90

The Denza B5 starts from $74,990 before on-road costs, while the Mazda CX-90 opens at $74,385. That makes the Mazda CX-90 the more affordable entry point by $605.

Once you factor in stamp duty, registration, CTP insurance, and dealer delivery, expect to add roughly 8-12% on top of the RRP depending on your state. That puts estimated driveaway prices in the ballpark of $82,489 and $81,824 respectively.

The Denza B5 qualifies for FBT exemption as an electric vehicle, which can dramatically reduce the effective cost for novated lease buyers. The Mazda CX-90, as a petrol model, does not qualify.

Over 5 years, the running costs favour the Denza B5 by roughly $9,405 in fuel alone.

Both the Denza B5 and Mazda CX-90 hold a 5-star ANCAP safety rating. Adult occupant protection scored 86% for the Denza B5 and 91% for the Mazda CX-90.

Where the two diverge is in active safety technology. The Mazda CX-90 packs more ADAS features with 6 out of 10 key systems fitted, compared to 4 in the Denza B5.

Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control.

How long each takes to charge — from a household power point to ultra-rapid DC — estimated from battery size and max charge rates.

The Denza B5 features a 15.6-inch touchscreen paired with a 12.3-inch digital dash, while the Mazda CX-90 gets a 10.3-inch display and 7-inch instruments. Apple CarPlay and Android Auto are standard across both.

The Denza B5 stands out with Apple CarPlay and Devialet audio that you will not find on the Mazda CX-90. The Mazda CX-90 counters with wireless Apple CarPlay/Android Auto, wireless charging and power tailgate. Which feature set matters more depends on your daily routine and priorities.

The Denza B5 uses a Petrol Turbo PHEV producing 400kW and 760Nm of torque, sent through a 1-speed auto to a AWD layout. It covers the 0-100km/h sprint in 4.8 seconds.

The Mazda CX-90 responds with a Petrol making 254kW and 500Nm, paired to a automatic driving all four wheels. It gets to 100km/h in 7.8 seconds.

The Denza B5 has the clear power advantage at 400kW vs 254kW. In the real-world sprint, the Denza B5 is 3.0s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.

The Denza B5 measures 4,888mm long on a 2,800mm wheelbase, 232mm shorter than the Mazda CX-90 at 5,120mm (3,120mm wheelbase). The longer wheelbase on the Mazda CX-90 generally means more rear legroom.

Boot space is 470L in the Denza B5 and 257L in the Mazda CX-90, giving the Denza B5 a 213L advantage. The Mazda CX-90 seats 7 vs 5.

For towing, the Denza B5 leads with a 3,000kg braked capacity vs 2,500kg. That 500kg difference matters if you regularly hitch up.

Based on 15,000km of annual driving, fuel costs roughly $456/year for the Denza B5 and $2,337/year for the Mazda CX-90. That is a $1,881 annual difference in favour of the Denza B5.

Estimated annual total: $456 (Denza B5) vs $2,337 (Mazda CX-90). The Denza B5 saves you roughly $1,881 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.

Warranty: 6 years / 150,000km (Denza B5) vs 5 years / 999,999km (Mazda CX-90). The Denza B5 has longer coverage.