The Q50 comes with 17" standard, so this isn't a good comparison, however, based on this video I don't see why anyone would want the 19's other than they look better.
Yes, it is, a lot detailed for a driver to make a educated decision. Most of people I know there are drivers go for 22" but that's just what they like and like I said earlier for these guys "Bigger is better".It's the best discussion I have seen so far on the tradeoffs with tire size even if the size of the smaller tire is different.
Please use the multi quote button between the quote and quick reply button on a post ... This is becoming a pet peeve of mine ... No need to drive up post counts!Yes, it is, a lot detailed for a driver to make a educated decision. Most of people I know there are drivers go for 22" but that's just what they like and like I said earlier for these guys "Bigger is better".
I have 3 Infiniti's that have 18, 19 & 20 inch rims, the biggest difference is the ride and handling that I can feel at freeway speeds. I prefer 19 as it's best of both worlds (between 18 and 20).
So where's a happy medium? 18?Here's the scoop with none of the poop:
Tires with shorter sidewalls (distance between the edge of the rim and the outer circumference of the tire) ride stiffer but flex less. During spirited driving, like high speed slalom maneuvers, the less flex the tire exhibits (side to side), the more controlled the ride is. Hard cornering also benefits from low profile tires.
With the common overall size of the tire, a 15 or 16" rim would provide a very soft, yet ridiculous ride, with none of the sportiness we've come to expect. It would squirm and feel sketchy in slaloms. Bring this idea into the real world, and you're dodging a row of suddenly stopped cars in your lane. You have less than a second to jump into an open lane and brake safely. A low profile tire gives you the control and confidence to pull this off without skidding or weaving; you can just safely dart into the open lane and keep going with a quick left-right on the wheel and a stab on the gas.
I've dodged many accidents in my life, and I have really formed a bond with my current car as a result. I know what it will do when things happen fast, in any weather, as long as I react properly. To me that's one of the most important aspects of a car, because honestly, you are trusting it with your life. And that trust begins, quite literally, where the rubber meets the road.
TL;DR version: short sidewalls give you more precise control at the expense of ride comfort.