The Tata Sierra looks very promising, but we have yet to drive it. We would thus recommend you wait until we release our drive review, which will be in mid-December.
As for the Maruti Victoris, it is a well-rounded product and, compared to the Sierra, offers a strong hybrid engine option. However, boot space here is limited due to the large battery in the back, and it also does not have a spare tyre on any variant.

