Complex sentence: By the early-eighties, a more powerful version which offered at 5,000 rpm was also available.Premier began to offer an air-conditioning system, tinted glasses, which was a luxury in Indian cars at the time, in the Padmini.
Split into simpler sentences: By the early-eighties, a more powerful version which offered at 5,000 rpm was also available. During the same time, Premier began to offer an air-conditioning system, which was a luxury in Indian cars at the time, in the Padmini.