YAMAHA R15 S, is a newly launched machine which again works on a 150cc engine, and company claims mileage of 48-54 KMPL, which can be attained easily if driven properly at speed of 60-70, overall this bike is good for streets, not comfortable for uphills nd long journey, yes it is reliable as it comes from a renowned brand YAMAHA, company has worked alot on dynamics and handling, which makes controlling and handling very convenient, and yes if we talk about look it loooks as a good racer bike and no bike can compete its looks and pickup in this price range, and it is liqud cooled, proud owner of this beast machine.