Montegue, thank you for your detailed answer. I have ordered T Trac 2 again this evening, but perhaps I can still reorder. Visually your tyre choice still looks ok or even good. The 4/4 would be lower on the road, but the 4/4 is not as critical as a Roadster, for example. A very good side effect would be that I would have a slightly shorter rear axle ratio, not very much but still. The TÜV (MOT) should actually accept the change. Your description of the soft sidewall of the tire is a very good point. Still controlled driving but also comfortable on such a light car. I will report back if I can reorder. Seems to be worth a try.
At least 3,8% shorter which is more than a third in comparison to a 4.1 diff vs my 3.7.
https://www.reifenrechner.at/index....15&2rb=185&2rh=65&2durchm=15One thing must not be forgotten. The standard tyres of the Trad Plus 4 were 195/60/15, so your Plus 4 with 185/65/15 is a touch higher but looks better in my view. Visually, your 185/65/15 fills the tyre housing more fully and nicely than the standard Plus 4 tires. On my 4/4 it's slightly different, the standard 165/80/15 is larger in diameter than the 185/65/15 but as I said it should look ok using 185/65/15. I hope the bell housing will not come too low. We are talking 1.2cm lower when installing 185/65/15. BTW I never understood why MMC didn't choose 195/65/15 for the Plus 4. Another BTW, on your photos I can see that your Plus 4 is hanging a bit backwards. If you are using lowering blocks I would think about removing them or use thinner ones to get the view straight. You have more suspension travel and a straighter line. In addition, the rear axle is "in" the spring and not "above" the spring. This eliminates or reduce the negative leverage effect on the spring in the event of lateral forces when cornering. Even if ghe rear comes a bit higher the ride feels more controlled. At least this is my experience.
In case you would make the lowering blocks thinner or remove them completely (depending on how thick they are at the moment) half of the sandwich rubber has to be removed over the axle to still allow the car to swing out properly.
