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Audi A4 vs Audi A6 vs BMW 3 Series LWB (2026)

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

  • Pick the Audi A4 if you want the lowest starting price (₹46.88 Lakh).
  • Pick the Audi A6 if you want the biggest boot (530 L).
  • Pick the BMW 3 Series LWB if you want the most power (369 bhp).

Three-Way Specification Comparison

SpecAudi A4Audi A6BMW 3 Series LWB
Ex-showroom price₹46.88 Lakh – ₹55.83 Lakh₹64.81 Lakh – ₹71.66 Lakh₹62.70 Lakh – ₹77.10 Lakh
Engine / Motor2.0L TFSI turbo-petrol 204 PS with 12V mild hybrid2.0L 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 power201 bhp242 bhp369 bhp
Fuel optionsPetrolPetrolPetrol, Diesel
TransmissionsDCTDCTTorque Converter AT
Mileage (claimed)———
Seating555
Safety ratingNot testedNot testedNot tested
Airbags (max)nullnullnull
Boot space460 L530 L480 L

Audi A4 in short

The A4 is Audi's core luxury sedan in India, priced ₹46.88 lakh (Premium) to ₹55.83 lakh (Technology) — the cheapest entry into the German luxury sedan class, undercutting the BMW 3 Series LWB by nearly ₹14 lakh. All variants run a 204 PS 2.0L TFSI petrol with mild-hybrid assistance and front-wheel drive. The mid-level Premium Plus is on sale but held from our table while we resolve a price conflict between sources (₹51.85 vs ₹51.57 lakh).

Full A4 prices & variants →

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 →

Head-to-head pairs

Frequently Asked Questions

A4 vs A6 vs 3 Series LWB — which should I buy?

Pick the Audi A4 if you want the lowest starting price (₹46.88 Lakh). Pick the Audi A6 if you want the biggest boot (530 L). Pick the BMW 3 Series LWB if you want the most power (369 bhp). Test-drive at least two before deciding — ride and dealer experience differ by city.

Which is the cheapest among A4, A6, 3 Series LWB?

The Audi A4 starts lowest at ₹46.88 Lakh, against ₹62.70 Lakh for the 3 Series LWB and ₹64.81 Lakh for the A6 (ex-showroom, October 2026).

Which is the safest of the three?

Audi A4: not yet NCAP-tested; Audi A6: not yet NCAP-tested; BMW 3 Series LWB: not yet NCAP-tested.