CS
CarSorted
HomeComparisonsLexus LS vs Mercedes-Benz S-Class
Spec Battle Updated 20 April 2026 5 min read

Lexus LS vs Mercedes-Benz S-Class

A detailed look at how two of Australia's most popular Sedans 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.

SpecLexusMercedes-Benz
Price (RRP)$199,850$278,900
Fuel typePetrolPetrol
Power310kW280kW
0-100 km/h5s4.9s
Fuel Economy10 L/100km8.4 L/100km
Boot Space480L510L
Towing2,100kg
Warranty5yr / Unlimited5yr / Unlimited
ANCAP SafetyNo dataNo data

Track the Lexus LS & Mercedes-Benz S-Class

Get price-drop alerts on these models plus our free weekly new-car rundown. Unsubscribe anytime.

Price Breakdown

The Lexus LS starts from $199,850 before on-road costs, while the Mercedes-Benz S-Class opens at $278,900. That makes the Lexus LS the more affordable entry point by $79,050.

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 $219,835 and $306,790 respectively.

Over 5 years, the running costs favour the Mercedes-Benz S-Class by roughly $2,280 in fuel alone.

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 Lexus LS features a 12.3-inch touchscreen, while the Mercedes-Benz S-Class gets a 12.8-inch display and 12.3-inch instruments. Apple CarPlay and Android Auto are standard across both.

The Lexus LS stands out with power tailgate and Mark Levinson audio that you will not find on the Mercedes-Benz S-Class. The Mercedes-Benz S-Class counters with panoramic roof and Burmester audio. Which feature set matters more depends on your daily routine and priorities.

Interior trim differs: the Lexus LS gets leather accented upholstery while the Mercedes-Benz S-Class offers nappa leather.

Drivetrain

The Lexus LS uses a 3.4L V6 Twin-Turbo Petrol producing 310kW and 600Nm of torque, sent through a 10-speed automatic to a RWD layout. It covers the 0-100km/h sprint in 5 seconds.

The Mercedes-Benz S-Class responds with a Petrol making 280kW and 500Nm, paired to a automatic driving all four wheels. It gets to 100km/h in 4.9 seconds.

The Lexus LS has the clear power advantage at 310kW vs 280kW. In the real-world sprint, the Mercedes-Benz S-Class is 0.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.

Space & Comfort

The Lexus LS measures 5,235mm long on a 3,125mm wheelbase, 56mm longer than the Mercedes-Benz S-Class at 5,179mm (3,106mm wheelbase). The longer wheelbase on the Lexus LS generally means more rear legroom.

Boot space is 480L in the Lexus LS and 510L in the Mercedes-Benz S-Class, giving the Mercedes-Benz S-Class a 30L advantage.

Turning Circle

Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.

11.2m to 12.0m

Lexus LS LS500 F Sport
11.2mTighter
Best
Mercedes-Benz S-Class S450L 4MATIC
12.0m
Worst
Lexus LS LS500 F Sport
11.2m · Average

Based on 11.2m turning circle:

  • U-turn on standard street (7m+ wide)
  • Standard parking bay
  • Tight carparks
  • Narrow laneways
Mercedes-Benz S-Class S450L 4MATIC
12.0m · Average

Based on 12.0m turning circle:

  • U-turn on standard street (7m+ wide)
  • Standard parking bay
  • Tight carparks
  • Narrow laneways

Turning circle ratings

Under 10m, Excellent
10 to 11m, Good
11 to 12m, Average
Over 12m, Large

True Cost to Own

Based on 15,000km of annual driving, fuel costs roughly $2,850/year for the Lexus LS and $2,394/year for the Mercedes-Benz S-Class. That is a $456 annual difference in favour of the Mercedes-Benz S-Class.

Estimated annual total: $2,850 (Lexus LS) vs $2,394 (Mercedes-Benz S-Class). The Mercedes-Benz S-Class saves you roughly $456 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.

Warranty: 5 years (Lexus LS) vs 5 years / 999,999km (Mercedes-Benz S-Class). Both match on warranty length.

Who Should Buy Which?

Buy the Lexus LS if: You want the lower entry price, prioritise performance, or prefer Lexus's approach to design and ownership experience.

Buy the Mercedes-Benz S-Class if: You need more boot space, want lower running costs, or prefer Mercedes-Benz's approach to design and ownership experience.

The Verdict

The Mercedes-Benz S-Class takes 3 of 5 key spec categories. The Mercedes-Benz S-Class will save you roughly $456 a year in fuel. The best pick depends on what you value most. Explore the full specs for each model below.

Common questions

Which is cheapest, Lexus LS and Mercedes-Benz S-Class?

The Lexus LS is the cheapest at $199,850 before on-road costs. That undercuts the Mercedes-Benz S-Class by $79,050.

Which is the most fuel-efficient?

The Mercedes-Benz S-Class uses the least fuel at 8.4L/100km on the combined cycle.

What are the ANCAP safety ratings?

None of Lexus LS and Mercedes-Benz S-Class carry a published ANCAP rating yet — check back as they are tested.

Which has the most boot space?

The Mercedes-Benz S-Class has the largest boot at 510L.

Which can tow the most?

The Mercedes-Benz S-Class has the highest braked towing capacity at 2,100kg.

Which is the most powerful?

The Lexus LS makes the most power at 310kW. The Mercedes-Benz S-Class is quickest to 100km/h in 4.9s.

Free: Chinese Cars in Australia Cheat Sheet

Sign up free and we'll email you our Chinese Cars Cheat Sheet (PDF) — all 22 brands ranked on service, parts, warranty and dealer experience. Plus new-car launches, reviews and founding-member pricing on the upcoming CarSorted Pro Report. No spam, unsubscribe anytime.

By subscribing, you agree to receive marketing emails. You can unsubscribe at any time. View our Privacy Policy.

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

Comments (0)

Sign in to join the conversation

No comments yet. Be the first!

More head-to-heads

Other matchups worth a look

Same segment, similar money. Tap any pair for the full side-by-side spec sheet.

All comparisons

Images are representative. Actual variant trim, colour and equipment may differ.

Browse all cars · All Sedans · Best family cars · Best hybrid cars