The choice between the Mercedes-Benz E-Class long-wheelbase and BMW 6 Series Gran Turismo may seem like an obvious one — the E-Class does comfort elegantly, the 6 Series does comfort with a tinge of sportiness — you choose accordingly. But as we found driving the powerful 6-cylinder diesel variants of the two, the sportiest variants you can buy, the answer isn’t quite as clear as one would think. Watch our comparison review to find out which of these executive luxury sedans is the best under ₹1 crore, on-road.