CITROEN has had much success with its stylish C4 small car, despite having a range of lacklustre petrol-engined models to choose from. Thank goodness for the HDi turbo-diesel: a 1.6-litre powerplant with the strength of a lion and the thirst of a thrip. But we cannot help but imagine that Citroen would sell even more C4s if the car was available with a fully-automatic transmission instead of the interesting - but flawed - EGS sequential-shift manual. At least there’s always the regular manual to fall back on.