Polestar Polestar 3 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 Polestar Polestar 3 starts from $99,900 before on-road costs, while the Mercedes-Benz EQB opens at $84,900. That makes the Mercedes-Benz EQB the more affordable entry point by $15,000.
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 $109,890 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
Both the Polestar Polestar 3 and Mercedes-Benz EQB hold a 5-star ANCAP safety rating. Adult occupant protection scored 90% for the Polestar Polestar 3 and 95% for the Mercedes-Benz EQB.
Where the two diverge is in active safety technology. The Polestar Polestar 3 packs more ADAS features with 10 out of 10 key systems fitted, compared to 6 in the Mercedes-Benz EQB.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 8 in the Polestar Polestar 3 and 7 in the Mercedes-Benz EQB. The Polestar Polestar 3 adds a 360-degree camera that the Mercedes-Benz EQB misses.
Feature Showdown
The Polestar Polestar 3 features a 14.5-inch touchscreen paired with a 9-inch digital dash, while the Mercedes-Benz EQB gets a 10.3-inch display. Apple CarPlay and Android Auto are standard across both.
The Polestar Polestar 3 stands out with head-up display, panoramic roof, heated front seats, ventilated seats, power tailgate and Bowers & Wilkins 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 Polestar Polestar 3 uses a Electric Motor producing 245kW and 480Nm of torque, sent through a single-speed fixed gear to a RWD layout. It covers the 0-100km/h sprint in 6.5 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 Polestar Polestar 3 has the clear power advantage at 245kW vs 140kW. In the real-world sprint, the Polestar Polestar 3 is 2.4s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Battery: 92kWh (Polestar Polestar 3) vs 66.5kWh (Mercedes-Benz EQB), giving WLTP ranges of 604km and 465km. DC fast charging peaks at 310kW (Polestar Polestar 3) vs 100kW (Mercedes-Benz EQB).
Space & Comfort
The Polestar Polestar 3 measures 4,900mm long on a 2,985mm wheelbase, 216mm longer than the Mercedes-Benz EQB at 4,684mm (2,829mm wheelbase). The longer wheelbase on the Polestar Polestar 3 generally means more rear legroom.
Boot space is 597L in the Polestar Polestar 3 and 495L in the Mercedes-Benz EQB, giving the Polestar Polestar 3 a 102L advantage. The Mercedes-Benz EQB seats 7 vs 5.
For towing, the Mercedes-Benz EQB leads with a 1,800kg braked capacity vs 1,500kg. That 300kg 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 11.8m
Based on 11.8m 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 / 999,999km (Polestar Polestar 3) vs 5 years / 999,999km (Mercedes-Benz EQB). Both match on warranty length.
Who Should Buy Which?
Buy the Polestar Polestar 3 if: You prioritise performance, need more boot space, or prefer Polestar's approach to design and ownership experience.
Buy the Mercedes-Benz EQB if: You want the lower entry price, need stronger towing, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The Polestar Polestar 3 takes 7 of 9 key spec categories. If boot space matters, the Polestar Polestar 3 has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
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.
Published by CarSorted Editorial Team · 20 April 2026
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