Chevrolet Cruze will be available in India in the range of Rs 11 to 13 lacs... for its exact onroad price you need to wait till its launch that might be possible in the month of August this year..... for more information about this car you may visit the above link.... Chevrolet Cruze
Chevrolet Optra has been discontinued, however, spare parts are available at authorized Chevrolet service centers. The cost, on the other hand, is comparable to the likes of Honda City and Hyundai Verna.
The Pulley, Clutch and compressor are three different part of the AC unit, and if there is a snag in the pulley, you don't need to change the compressor. Generally, it happens because of the belt or the bearing, but if there is something wrong with the compressor, you will need to get it replaced. We will advise you to visit another workshop to get a better idea on the same.