Why shouldn't I fit 15-inch wheels to my Toyota Auris T Spirit?

My car is a Toyota Auris hybrid T Spirit and comes on 17-inch wheels with 215/45R17 tyres. Is there any reason I can't have the 15-inch wheels with 195/65R15 tyres fitted, which should give me a softer ride? The service manager at my local Toyota says there is a reason 17-inch wheels are fitted to the T Spirit but he couldn't remember why.

Asked on 9 January 2012 by ED, Filey

Answered by Honest John
The reason I can give is that, much to my surprise, they simply don't work in comparison to the 17-inch wheels. Handling is appalling and ride is actually worse. That's why my dad's Auris HSD is on 17-inch wheels: www.honestjohn.co.uk/road-tests/toyota/toyota-auri.../
Similar questions
After becoming almost paranoiac over my 17-inch wheel problem, yesterday, for a total of £700 I equipped my Ford B-Max Titanium with 15-inch Ford Zetec alloy wheels shod with the appropriate 195/60 Michelin...
You recently commented on driving your Father's Auris hybrid, and I think I remember your remarking on the smoothness of the autobox. We currently run a BMW 3 Series and a V5 Golf, which is getting a little...
My wife thinks the ride in the Toyota Auris SR I have just bought is too hard. The tyres are Dunlop Sport2000 225/45ZR/17/91W. Could you recommend any softer-riding tyres of the same size?
Related models
Decent combination of ride and handling that might suit some people better than a harder sprung Golf or a Civic. A few inches taller than a Golf of Focus so easier to get in and out.
 

Ask Honest John

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 10% on GAP Insurance

Use HJ10 to save on an ALA policy

See offer