The Kia Carens has been a popular MPV, attracting buyers looking for a slightly premium vehicle than the ever-popular Maruti Suzuki Ertiga. The latter isn't offered in the diesel guise, but the Carens offers both diesel and petrol powertrains. And, also with the choice of manual and automatic transmissions. Notably, the oil-burner offers two automatic transmission choices — a conventional six-speed AT and an iMT. We've compared the two earlier for the real-world mileage, and here's how the MPVs performed in terms of acceleration and drivability.