The Mazda MX-5 has held the title of the world’s most popular sports car for the past 25 years. But some critics say that the latest generation lightweight Japanese sports car could do with a bit more power to exploit its well-sorted chassis. And now BBR, a well-known Northamptonshire-based Mazda tuning specialist, has released details about its new power-hiking package. The tuner has developed a Stage 1 twin-scroll turbocharger upgrade for the 2,0-litre model, taking the SkyActiv-G engine’s peak power from the stock 118 kW @ 6000 r/min to a meatier 185 kW @ 7150 r/min. Maximum torque, meanwhile, climbs from 200 N.m to 320 N.m, available at 3250 r/min. According to Mazda, the standard roadster is capable of reaching 100 km/h from standstill in 7,3 seconds . And the turbocharged BBR MX-5? Well, the tuner claims that the obligatory sprint time falls to a smidgen more than 5,0 seconds, with a claimed power-to-weight ratio of 174 kW per tonne and a electronically limited top speed of 250 km/h. BBR says it began development and testing back in 2014, using a Mazda3 as the mule. The tuner concluded that a twin-scroll turbocharger was a better bet than a supercharger due to the high compression ratio of the SkyActiv-G engine.