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Audi A6 vs Mercedes-Benz C-Class vs Mercedes-Benz E-Class (2026)

The classic luxury sedan shortlist, settled with numbers (October 2026):

  • Pick the Audi A6 as the balanced middle path — it wins no single spec outright but concedes little anywhere.
  • Pick the Mercedes-Benz C-Class if you want the lowest starting price (₹61.20 Lakh), the most power (670 bhp).
  • Pick the Mercedes-Benz E-Class if you want the biggest boot (540 L).

Three-Way Specification Comparison

SpecAudi A6Mercedes-Benz C-ClassMercedes-Benz E-Class
Ex-showroom price₹64.81 Lakh – ₹71.66 Lakh₹61.20 Lakh – ₹1.91 Crore₹81.50 Lakh – ₹1.45 Crore
Engine / Motor2.0L TFSI turbo-petrol 245 PS with 12V mild hybrid (45 TFSI)1.5L turbo-petrol (C 200) / 2.0L diesel (C 220d) / AMG 2.0L turbo-petrol (C 43) / AMG 2.0L plug-in hybrid 680 PS (C 63 S E Performance)2.0L turbo-petrol (E 200) / 2.0L diesel (E 220d) / 3.0L I6 petrol (E 450) / AMG 3.0L I6 plug-in hybrid 585 PS (E 53)
Max power242 bhp670 bhp577 bhp
Fuel optionsPetrolPetrol, Diesel, Petrol HybridPetrol, Diesel, Petrol Hybrid
TransmissionsDCTTorque Converter AT, DCTTorque Converter AT
Mileage (claimed)———
Seating555
Safety ratingNot testedNot testedNot tested
Airbags (max)nullnullnull
Boot space530 L—540 L

Audi A6 in short

The A6 is Audi's executive sedan in India, running ₹64.81 lakh (MY2025 base) to ₹71.66 lakh (Technology) with a 245 PS 2.0L TFSI mild-hybrid petrol. This C8 generation is in runout — the all-new A6 is expected in India around October — which makes the current car the value play of the class: it undercuts the BMW 5 Series LWB by nearly ₹12 lakh and the Mercedes E-Class by more. Unlike those two, the A6 runs a standard wheelbase.

Full A6 prices & variants →

Mercedes-Benz C-Class in short

The C-Class is Mercedes' core luxury sedan in India, spanning an unusually wide ₹61.20 lakh to ₹1.91 crore because the range runs from the C 200 petrol all the way to the 680 PS AMG C 63 S E Performance plug-in hybrid. The volume variants — C 200 petrol and C 220d diesel — are priced identically at ₹61.20 lakh, a rarity in this class. It competes with the BMW 3 Series LWB and Audi A4. Note: the C 300 AMG Line is on sale but held from our table pending price verification (sources conflict between ₹65.60 and ₹67.00 lakh).

Full C-Class prices & variants →

Mercedes-Benz E-Class in short

The E-Class LWB is India's best-selling luxury car, and the current generation launched in October 2024 continues the formula that earned that title: an India-specific long-wheelbase body with a 3,094 mm wheelbase, reclining rear seats and a 540-litre boot. The range spans ₹81.50 lakh (E 200) to ₹1.45 crore for the 585 PS AMG E 53 Hybrid 4MATIC+ plug-in hybrid. India is one of the few markets to get the LWB sedan at all — the BMW 5 Series LWB is its only direct long-wheelbase rival, with the Audi A6 running standard length.

Full E-Class prices & variants →

Head-to-head pairs

Frequently Asked Questions

A6 vs C-Class vs E-Class — which should I buy?

Pick the Audi A6 as the balanced middle path — it wins no single spec outright but concedes little anywhere. Pick the Mercedes-Benz C-Class if you want the lowest starting price (₹61.20 Lakh), the most power (670 bhp). Pick the Mercedes-Benz E-Class if you want the biggest boot (540 L). Test-drive at least two before deciding — ride and dealer experience differ by city.

Which is the cheapest among A6, C-Class, E-Class?

The Mercedes-Benz C-Class starts lowest at ₹61.20 Lakh, against ₹64.81 Lakh for the A6 and ₹81.50 Lakh for the E-Class (ex-showroom, October 2026).

Which is the safest of the three?

Audi A6: not yet NCAP-tested; Mercedes-Benz C-Class: not yet NCAP-tested; Mercedes-Benz E-Class: not yet NCAP-tested.