The new 1.4-litre MultiAir engine was developed and patented by Fiat Powertrain Technologies and made its debut in the MiTo late last year.
MultiAir eliminates the compromises in many valve timing set-ups by metering the direct air charge at the cylinder inlet ports with an advanced electro-hydraulic actuation and control system to optimally adjust valve timing and lift to exactly suit different engine speeds and loads ensuring strong low- and mid-range torque and good top-end power – along with reduced emissions and improved economy.
It is initially offered in two turbocharged forms in the UK, a 135bhp version in the £15,165 Lusso and £16,135 Veloce and a 170bhp version in the top of the range Cloverleaf priced at £17,895.
Other technologies include active suspension on the Cloverleaf and an emission-reducing stop-start system.
The B segment is the biggest in the UK, representing more than 25 per cent of the total new car market.