A premium problem to have However, Infiniti is relying on people who could be swayed by something a bit more interesting. And interesting the Q50 certainly is. For example, although it's got a petrol engine, it's very economical - over more than 500 miles I averaged 40mpg. Throw in an 80-litre fuel tank, and you have a car with a diesel-rivalling range. Yet, because it's a petrol motor, it sounds sweet and revs hard. The interior is different, too, with two touchscreens festooned with apps to control the satnav and audio. Then there's the steering, which, if you upgrade to the Direct Adaptive system, makes do without a mechanical linkage to the front wheels, and instead is based on a steer-by-wire set-up. What this means is that Infiniti has been able to tune out all of the nasty bumps and vibrations, plus vary the effort required to turn the wheel depending on how fast you're going. However, it's also made it so responsive that every corner becomes a new and exciting opportunity to guess where you might crash. Ditch the fancy steering, and this is by no means a bad car. The ride is acceptable, the styling is smart, the seats are superb and there's a big boot, but £34,125 buys you an awful lot of BMW 3-series, let alone the £41,545 that my test car came in at with options. Ultimately, this is what happens when you use money and not experience to try and be premium. Like a fish finger butty made with turbot and sourdough, the Q50 is overly expensive, overcomplicated and kind of missing the point. Infiniti Q50 2.0T Sport Price as tested: £41,545 Power/torque: 211bhp/258lb ft Acceleration: 0-62mph in 7.2sec Top speed: 155mph (limited) Average fuel consumption: 43.5mpg CO2 emissions: 146g/km Telegraph rating: Two stars out of five Read about the Infiniti Q50 range