3 Series

The long-wheelbase variant is not a marketing distinction — the 110mm addition over the standard 3 Series wheelbase translates into rear legroom that is meaningfully different in practice, not just on paper. For a car that spends a significant portion of its time being driven rather than driven by its owner, that extra space changes the experience considerably.
The trade-off is real though. The added length does make tight parking situations more demanding, and in dense urban environments that is a daily consideration worth factoring in.
That said, for buyers who prioritise the rear-seat experience — which describes a large portion of the premium sedan market in India — the LWB makes a compelling case. India's chauffeur-driven culture is well suited to exactly what this wheelbase delivers, and those who have spent time in both versions consistently find the longer variant harder to give up once experienced from the back seat.