Dry roads in particular, wide grippy tyres, cars higher overall than the ones they replaced, deskilled drivers who never learned to drive by the seat of their pants and never will because the car is controlling itself rather than the driver doing so, overall cornering speeds far higher than they once were (witness trying to emerge at some roundabouts which resemble race tracks), possibly these and many more reasons all add up.
I've seen dozens of videos from here and abroad where it can only take a minor oblique glancing blow, ie a car passing stationary car hits the car as it passes and almost instantly the moving car flips.
High CoG vehicles such as 4x4's have always had a tendency to flip given enough force, the trend to SUV style designs in recent years must have had an effect here, having run large Toyota 4x4's for years its surprising just how small my Landcruiser is when parked compared to so many now, 20 years ago you could spot my old bangers from across a huge car park now its the same height.
Its one area where lower slung battery cars should feature less, given the battery mass concentrated under the passenger compartment.
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