Cadillac Optiq vs Mercedes-Benz EQB
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.
Price Breakdown
The Cadillac Optiq starts from $80,000 before on-road costs, while the Mercedes-Benz EQB opens at $84,900. That makes the Cadillac Optiq the more affordable entry point by $4,900.
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 $88,000 and $93,390 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 Cadillac Optiq features a 14.9-inch touchscreen, while the Mercedes-Benz EQB gets a 10.3-inch display. Apple CarPlay and Android Auto are standard across both.
The Cadillac Optiq stands out with head-up display, panoramic roof, heated front seats, ventilated seats, power tailgate and harman/kardon audio that you will not find on the Mercedes-Benz EQB. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Cadillac Optiq uses a Electric producing 224kW and 480Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 4.6 seconds.
The Mercedes-Benz EQB responds with a Electric making 140kW and 375Nm, paired to a automatic driving the front wheels. It gets to 100km/h in 8.9 seconds.
The Cadillac Optiq has the clear power advantage at 224kW vs 140kW. In the real-world sprint, the Cadillac Optiq is 4.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Battery: 75kWh (Cadillac Optiq) vs 66.5kWh (Mercedes-Benz EQB), giving WLTP ranges of 425km and 465km. DC fast charging peaks at 150kW (Cadillac Optiq) vs 100kW (Mercedes-Benz EQB).
Space & Comfort
The Cadillac Optiq measures 4,953mm long on a 3,000mm wheelbase, 269mm longer than the Mercedes-Benz EQB at 4,684mm (2,829mm wheelbase). The longer wheelbase on the Cadillac Optiq generally means more rear legroom.
Boot space is 500L in the Cadillac Optiq and 495L in the Mercedes-Benz EQB, giving the Cadillac Optiq a 5L advantage. The Mercedes-Benz EQB seats 7 vs 5.
For towing, the Cadillac Optiq leads with a 2,500kg braked capacity vs 1,800kg. That 700kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.4m to 12.6m
Based on 12.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.4m 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: 5 years / 150,000km (Cadillac Optiq) vs 5 years / 999,999km (Mercedes-Benz EQB). Both match on warranty length.
Who Should Buy Which?
Buy the Cadillac Optiq if: You want the lower entry price, prioritise performance, need more boot space, need stronger towing, or prefer Cadillac's approach to design and ownership experience.
Buy the Mercedes-Benz EQB if: You or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The Cadillac Optiq takes 7 of 9 key spec categories and comes in at a lower price. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Cadillac Optiq and Mercedes-Benz EQB?
The Cadillac Optiq is the cheapest at $80,000 before on-road costs. That undercuts the Mercedes-Benz EQB by $4,900.
Which has the longest driving range?
The Cadillac Optiq has the most range at 450km (WLTP).
Which charges fastest?
The Cadillac Optiq accepts the highest DC charging at up to 150kW.
Which is safest?
They are evenly matched — Mercedes-Benz EQB 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 Cadillac Optiq has the highest braked towing capacity at 2,500kg.
Which is the most powerful?
The Cadillac Optiq makes the most power at 224kW. The Cadillac Optiq is quickest to 100km/h in 4.6s.
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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