Denza B5 vs Cadillac Optiq
Two electric SUVs go head to head. Which EV is the better buy for Australian drivers in 2026?
Specifications and pricing correct at time of publishing. Prices are RRP before on-road costs unless stated otherwise. Always confirm with the manufacturer or dealer before purchasing.
Plug-in hybrid fuel economy is shown as a hybrid (battery depleted) so it compares fairly with the other car. A PHEV's official "combined" figure assumes you start every trip fully charged, so real-world economy depends on how often you plug in. Electric range shows how far it goes before the petrol engine is needed.
Price Breakdown
The Denza B5 starts from $74,990 before on-road costs, while the Cadillac Optiq opens at $80,000. That makes the Denza B5 the more affordable entry point by $5,010.
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 $88,000 respectively.
Both models qualify for Fringe Benefit Tax (FBT) exemption, which is a significant advantage for salary-sacrificed novated leases. Depending on your tax bracket, this can save $5,000-$15,000+ per year compared to an equivalent ICE vehicle.
Safety Rundown
ANCAP safety ratings have not been published for both models yet. We will update this section when crash test results are available.
Feature Showdown
The Denza B5 features a 15.6-inch touchscreen paired with a 12.3-inch digital dash, while the Cadillac Optiq gets a 33-inch display and 33-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 Cadillac Optiq. The Cadillac Optiq counters with wireless Apple CarPlay/Android Auto, head-up display, wireless charging, panoramic roof, heated front seats, ventilated seats, power tailgate, AKG audio and ambient lighting. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
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 Cadillac Optiq responds with a Electric making 224kW and 480Nm, paired to a automatic driving all four wheels. It gets to 100km/h in 4.6 seconds.
The Denza B5 has the clear power advantage at 400kW vs 224kW. In the real-world sprint, the Cadillac Optiq is 0.2s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Denza B5 measures 4,888mm long on a 2,800mm wheelbase, 65mm shorter than the Cadillac Optiq at 4,953mm (3,000mm wheelbase). The longer wheelbase on the Cadillac Optiq generally means more rear legroom.
Boot space is 470L in the Denza B5 and 500L in the Cadillac Optiq, giving the Cadillac Optiq a 30L advantage.
For towing, the Denza B5 leads with a 3,000kg braked capacity vs 2,500kg. That 500kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.8m to 12.6m
Based on 11.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 12.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
True Cost to Own
Running cost data is not yet available for both models. We will update when figures are confirmed.
Warranty: 6 years / 150,000km (Denza B5) vs 5 years / 150,000km (Cadillac Optiq). The Denza B5 has longer coverage.
Who Should Buy Which?
Buy the Denza B5 if: You want the lower entry price, prioritise performance, value a longer warranty, need stronger towing, or prefer Denza's approach to design and ownership experience.
Buy the Cadillac Optiq if: You need more boot space, or prefer Cadillac's approach to design and ownership experience.
The Verdict
The Denza B5 takes 4 of 6 key spec categories and comes in at a lower price. The Denza B5 adds peace of mind with a longer 6-year warranty. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Denza B5 and Cadillac Optiq?
The Denza B5 is the cheapest at $74,990 before on-road costs. That undercuts the Cadillac Optiq by $5,010.
Which is the most fuel-efficient?
The Denza B5 uses the least fuel at 1.9L/100km on the combined cycle.
Which is safest?
They are evenly matched — Denza B5 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Cadillac Optiq has the largest boot at 500L.
Which can tow the most?
The Denza B5 has the highest braked towing capacity at 3,000kg.
Which has the best warranty?
The Denza B5 has the longest warranty at 6 years / 150k km.
Which is the most powerful?
The Denza B5 makes the most power at 400kW. The Cadillac Optiq is quickest to 100km/h in 4.6s.
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Disclaimer: All information in this comparison was believed to be correct at the time of publishing (20 April 2026). Prices are manufacturer recommended retail prices (RRP) and may vary by state, dealer, and options. Driveaway costs include estimated on-road costs for Victoria. Fuel economy figures are WLTP/ADR combined cycle. Specifications can change without notice. Always verify with the manufacturer before making a purchase decision. CarSorted does not accept payment for recommendations.
Auto-generated from CarSorted's specification data · 20 April 2026
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