The success of the 1M and now the M135i have made it obvious to BMW that smaller M products are vital the future of the brand. While the 1M was limited, it sold briskly from the start. The M135i seems to be carrying on that success albeit without the limited edition constraints that 1M had. And it\'s not just BMW that sees the potential market. Both Mercedes and Audi will be coming to market with offerings in the next 1-2 years.