Completely Functional 22 Karat Gold Plated Tata Nano. The Tata Group Monday unveiled a Nano car – created with silver and gold, and studded with gemstones – worth an substantial around Rs 22 crore.But, it isn't on sale – the precious and completely functional car is really a exclusive personalisation and promo project by Goldplus Jewelry, a part of Titan Industrial sectors, a Tata Group company, the official said.Chairman of Tata Group Ratan Tata poses before a Nano car made from gold after a ceremony in Mumbai, India. About 80 kg of 22 karat gold, approximately 15 kg of silver and gemstones have been to brighten your car, based on a press statement. (Reuters)