Mercedes-Benz SL-Class vs Volvo C70
A detailed look at how two of Australia's most popular Convertibles compare on price, running costs, safety, and everyday livability.
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.
Data checked: specs 28 Aug 2026, price 24 Jun 2026
Mercedes-Benz SL-Class
From $386,500
Convertible
Petrol
Petrol
430kW
13.9 L/100km
ANCAP: no data
213L
Volvo C70
Price TBC
Convertible
Petrol
—
125kW
9.6 L/100km
ANCAP: no data
404L
Volvo C70: we're still completing price, kerb weight, seat count, warranty and ground clearance.
A blank cell below means we don't have that figure, not that the car scores badly on it. We leave them empty rather than estimate, so any row where one car is blank isn't a like-for-like comparison yet.
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Price Breakdown
Pricing for one or both models is yet to be confirmed for the Australian market. We will update this comparison when official RRPs are announced.
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
Both come with modern infotainment systems.
The Mercedes-Benz SL-Class stands out with wireless Apple CarPlay/Android Auto, head-up display, wireless charging, panoramic roof, heated front seats, Burmester audio and ambient lighting — features our data doesn't list for the Volvo C70. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Mercedes-Benz SL-Class uses a Petrol producing 430kW and 800Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 3.9 seconds.
The Volvo C70 lines up making 125kW and 230Nm, paired to a 5-speed geartronic automatic driving the front wheels. It gets to 100km/h in 10 seconds.
The Mercedes-Benz SL-Class has the clear power advantage at 430kW vs 125kW. In the 0-100 sprint (manufacturer-claimed), the Mercedes-Benz SL-Class is 6.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Mercedes-Benz SL-Class measures 4,705mm long on a 2,700mm wheelbase, 123mm longer than the Volvo C70 at 4,582mm (2,640mm wheelbase). The longer wheelbase on the Mercedes-Benz SL-Class generally means more rear legroom.
Boot space is 213L in the Mercedes-Benz SL-Class and 404L in the Volvo C70, giving the Volvo C70 a 191L advantage.
0Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.6m to 11.8m
Based on 11.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
Compare U-turns side by side
Turning Circle · U-turn compare
kerb-to-kerb, 2 cars0 of 2 clear a 7.0 m street in one sweep
Green cars complete the U-turn; amber need a 3-point turn. Drag the slider to test tighter streets.
Standard widths: AU local streets ~5.5–7 m; main roads ~9–12 m.
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $3,962/year for the Mercedes-Benz SL-Class and $2,736/year for the Volvo C70. That is a $1,226 annual difference in favour of the Volvo C70.
Who Should Buy Which?
Buy the Mercedes-Benz SL-Class if: You prioritise performance, or prefer Mercedes-Benz's approach to design and ownership experience.
Buy the Volvo C70 if: You need more boot space, want lower running costs, or prefer Volvo's approach to design and ownership experience.
The Verdict
The Mercedes-Benz SL-Class comes out ahead on the CarSorted Score (46 vs 35), taking 2 of 5 key spec rows below. The deciding gaps: technology (Mercedes-Benz SL-Class ahead by 73), performance (Mercedes-Benz SL-Class ahead by 66), safety (Mercedes-Benz SL-Class ahead by 41). The Volvo C70 will save you roughly $1,226 a year in fuel. If boot space matters, the Volvo C70 has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Mercedes-Benz SL-Class and Volvo C70?
The Mercedes-Benz SL-Class is the cheapest at $386,500 before on-road costs.
Which is the most fuel-efficient?
The Volvo C70 uses the least fuel at 9.6L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of Mercedes-Benz SL-Class and Volvo C70 carry a published ANCAP rating yet, so there is no crash result to compare. Check back as they are tested.
Which has the most boot space?
The Volvo C70 has the largest boot at 404L with the seats up.
Which can tow the most?
The Volvo C70 has the highest braked towing capacity at 1,500kg.
Which is the most powerful?
The Mercedes-Benz SL-Class makes the most power at 430kW. The Mercedes-Benz SL-Class is quickest to 100km/h in 3.9s.
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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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