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Audi A6 vs BMW 3 Series LWB (2026)

Audi A6 (₹64.81 Lakh – ₹71.66 Lakh) and BMW 3 Series LWB (₹62.70 Lakh – ₹77.10 Lakh) go head-to-head in the luxury sedan space. Here is how they compare on the numbers (October 2026).

  • The BMW 3 Series LWB is more affordable — it starts ₹2.11 Lakh lower than the Audi A6.
  • The BMW 3 Series LWB is the more powerful car, with 369 bhp against 242 bhp.
  • The Audi A6 has the bigger boot: 530 litres vs 480 litres.

Specification Comparison

SpecAudi A6BMW 3 Series LWB
Ex-showroom price₹64.81 Lakh – ₹71.66 Lakh₹62.70 Lakh – ₹77.10 Lakh
Engine / Motor2.0L TFSI turbo-petrol 245 PS with 12V mild hybrid (45 TFSI)2.0L turbo-petrol 258 PS (330Li) / 2.0L diesel 190 PS (320Ld) / 3.0L I6 turbo-petrol 374 PS (M340i xDrive)
Max power242 bhp369 bhp
Fuel optionsPetrolPetrol, Diesel
TransmissionsDCTTorque Converter AT
Mileage (claimed)——
Seating55
Safety ratingNot testedNot tested
Airbags (max)nullnull
Boot space530 L480 L

Shortlisting a third car? See the full three-way comparison →

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 →

BMW 3 Series LWB in short

The 3 Series Long Wheelbase is India's sports-sedan benchmark stretched for the back seat: a 2,961 mm wheelbase exclusive to markets like India, priced ₹62.70–77.10 lakh. The volume cars are the 258 PS 330Li petrol and 190 PS 320Ld diesel, and the range tops out with the 374 PS six-cylinder M340i xDrive — the quickest sedan built in India. It fights the Mercedes-Benz C-Class and Audi A4, both of which run standard wheelbases.

Full 3 Series LWB prices & variants →

Frequently Asked Questions

Which is cheaper: A6 or 3 Series LWB?

The BMW 3 Series LWB is more affordable — it starts ₹2.11 Lakh lower than the Audi A6. (Ex-showroom prices, October 2026.)

A6 vs 3 Series LWB — which is safer?

NCAP ratings: Audi A6 — not yet tested; BMW 3 Series LWB — not yet tested.

Should I buy the A6 or the 3 Series LWB?

The BMW 3 Series LWB is more affordable — it starts ₹2.11 Lakh lower than the Audi A6. The BMW 3 Series LWB is the more powerful car, with 369 bhp against 242 bhp. The Audi A6 has the bigger boot: 530 litres vs 480 litres. Beyond the numbers, shortlist by test-driving both — ride quality and dealer experience differ by city.