I thought I'd throw up some quick initial thoughts while Goodyear/ Beaurepaires Australia have a "4 for the price of 3 tyres" promo going on the F1 Sport.
I was a bit hesitant to buy these due to the small number of reviews, but they appear to be a very good tyre. The ride is comparably plush/ soft over bad surfaces- but not in an uncontrolled manner like you can get with cheap soft walled tyres. The noise levels are also very low over ruts/ coarse surfaces. The steering isn't razor sharp (given the plush ride you wouldn't expect it), but load the suspension into corners and the tyres grip well and the feedback is very good and confidence inspiring. I haven't pushed them to the limit, but they certainly don't fall in a heap if you start pushing them enthusiastically on corners. There's reassuring feedback and no feeling of the side walls flexing/ rolling over.
I haven't tested out the braking, so can't comment on that yet.
They have really wide rim protection strips and they will offer excellent wheel protection should a kerb be misjudged.
On the sidewall they have "Engineered by Goodyear in Europe, made by Goodyear in China". But don't let that put you off buying them. It's often surprising where even expensive high end performance tyres are made.
The previous tyres were 215/55R17 Yokohama E70 DB. Noisy, dangerous rubbish with poor ride/ handling and dangerous long braking (OEM fit.) It has also had 235/50R17 P Zero Asimmetrico tyres- which had sharp steering and handling, but also gave a loud rough ride. The F1 Sport make it feel like a different vehicle, with a more luxurious ride combined with decent handling. I'm very impressed with them so far.
Background- I've owned lots of hot hatches and modify cars. The Kizashi is the family runabout- but I don't like compromising on tyres (ie. safety) for any of my vehicles. The Kizashi has an upgraded rear sway bar fitted which vastly improves the turn in on corners. Other tyres I've currently got on different vehicles: Goodyear Asymmetric 6 and 2, Dunlop Sport Maxx 050 (OEM fit) and Pirelli P Zero PZ4.