Perhaps not a rival to some: bear with me, while I make my case.
We bought our Cx3 in 2015. We're a family of 4, living between the Jura and the Alps, and spend our winter weekends with a roof full of skis and a tiny boot full of stuff.
Now, my girls are teenagers, getting taller, with an army of friends, none are old enough to drive.
Our CX3 is almost 4 years old. My wife does 90% of the driving, (I commute by bike, or scooter). Her must haves were that our car should be smallish, yet sit a little taller than a hatchback, be AWD, AUTO and parking sensors. These requirements and it's pretty looks led us to buy a CX3. It's 5 year warranty expires next year, which is also when the mandatory vehicle examination in Switzerland will be due. We like the CX3 and would be happy to replace it with another.
However, one competitor is...the CX-30 (when it's released). Slightly larger yes. But not as big as a CX5 and ticks all the boxes, including being very pretty (despite the plastic cladding)!
A quick pic I took at its launch in Geneva earlier this month.