It is impossible to discuss the ride quality of the new Five without mentioning the run-flat tyres. Once again the 17-inch rims’ extra unsprung weight and run-flat tyres’ stiff sidewalls severely damage the ride. The weight distribution of the 525i means there’s less fidget than some diesel versions we’ve driven, but it remains unacceptable on poorer-quality UK roads. Those seeking a smooth ride should stick to standard 16-inch rims and conventional tyres.
Moving much of the switchgear to the iDrive controller means the cabin looks stark, but it’s solidly made. The larger new car offers an 18 per cent increase in boot space at 500 litres, rising to 1650 litres with the 60:40 split seats folded. And it’s not at the expense of rear-seat space, with room for four six-footers to sit comfortably.
The rear seats don’t fold completely flat, but there is little intrusion from the air-sprung suspension. Practical touches include a lockable boot floor, an opening rear window and a luggage cover that opens with the tailgate.
Fuel economy depends entirely on your driving style. A light throttle on our touring route yielded 27.9mpg, but more telling is our overall figure of 19.5mpg. At least the £29,415 price tag includes front, side and curtain airbags, climate and cruise control, a CD player and part-electric front seats.
Main rivals for the Touring will be the Audi A6 Avant and Mercedes E-class estate. The sparsely-equipped Merc E240 comes as an automatic as standard, but produces just 177bhp and weighs in at £31,260. The Audi needs 3.2 litres and 217bhp to keep up with the BMW, which means a £32,175 price tag.
But the car most likely to lure your money from the 525i is its sister 525d. At £30,110 it costs just £695 more than the petrol, offers a claimed 40.4mpg with little loss in performance, and with CO2 emissions of only 187g/km will save a 40 per cent company car taxpayer £102 a month.