― BMW M135i, is the new small monster from BMW. BMW 1-Series is a real tiny car and 3-lt 320 PS petrol engine is a monster. When you combine 320 PS engine with BMW 1-Series, the result is M135i monster. And I had opportunity to see it in Goodwood Festival of Speed. ∙ As you can see, BMW M135i does not look that different but accelerates to 100 kph (62 mph) in 4,9 seconds with 8-speed automatic gearbox and 5,1 seconds with manual. Why? Because, modern automatic gearboxes shifts faster than a [...].