The MX-5 Miata roadster comes in two basic configurations: a soft-top or a power retractable hardtop. Three transmissions are offered, a five-speed manual, a six-speed manual and a six-speed automatic with steering wheel mounted paddle shifters. The only engine available, a 2.0-liter, inline four-cylinder, comes in two power levels, one rated at 167 horsepower with either manual transmission, or 158 horsepower with the automatic. Standard safety equipment across the line comprises dual front airbags with passenger deactivation switch, side impact airbags, tire pressure monitoring and anti-lock brakes with electronic brake-force distribution; electronic stability and traction control is optional on the Grand Touring trim. For 2009, the MX-5 Miata has had a exterior styling refresh with new fascias, headlights, taillights and wheel designs; as well as some functional changes such as one extra horsepower for manual transmission models, improved fuel economy, improved suspension and some new standard equipment throughout the trim levels.