I have owned two Sierras within a span of five years.
Advisable for young at heart, a couple with not more than two kids, people looking for a second vehicle which is safe, sturdy, low on maintanence, good looking, for long drives, comfortable seating etc, etc, . The only problem is getting in and out of rear seat, for which the front passenger has to get down first.
Styling: The design is not contemporary and at the same time is not outdated. Getting in a out of the vehicle(front seats) is a breeze. The body suitable to make lots and lots of customising. Luggage space is acceptable. The rear seat is foldable. Rear glass which has very large surface area gives the vehicle very rich look. Alloy wheels and balloon tyres will enhance the look of the vehicle.
Interiors: interiors are of good quality and are placed well.
Comfort : Tata has given advanced features like Power steering, Power windows, ac, tiltable steering, rpm meter etc, 15 years ago.
Performance: The engine is adequate for the vehicle, torque is spread throught all rpms. Gear shift is good. Power steering functinos well. There is slight body roll but definitely safe at all the speeds the vehicle can travel. The best part is suspension. It absorbs all the pathholes with eaze. Mileage is 10-11 km/lt in city and 15-16 km/lt on highways.
Maintanence: The vehicle is very low on maintanence. And the spares are reasonable and available everywhere.
Conclusion: Second hand vehicle in good condition will be availble around 100k, which is a good bargain considering features and all other aspects. Finally its worth the money u invest on it.