What is the difference between Maruti Suzuki Nexa and Maruti Suzuki Arena? On what basis are certain models branded under Nexa and some under Arena?

Will there be an upgrade to the Maruti Suzuki Swift this year (2020)? If so, have there been any pictures of the new model? Did the car receive a facelift?

How much engine oil does the Maruti Suzuki Ciaz require? Which engine oil suits the best for the car and how often must it be changed?

If one were to take the Maruti Suzuki Celerio for a road trip along a bumpy terrain can they expect to come back with a damaged underbelly of the car? I mean, does it have good ground clearance or since it looks like a low car there are chances of damage?

How much fuel can the fuel tank of Maruti Suzuki Ciaz hold? How many kilometers can it run on a full tank? I want to know whether this is a gas guzzler or a fuel-efficient car?