Bolan and other vans cannot be compared to front-engine cars. Bolan was mid-engined and extremely stable because the engine was very low down.
An argument in the 7-seater minivan vs 7-seater SUV war is that SUV engine is higher so the centre-of-gravity is higher and the car is front-heavy also, so it is more prone to rollover.
Now Wagon R has same profile as Bolan but engine up front so it will be different.
And also Bolan is very stable compared to what you may feel when you see it, but it does not mean it doesn't swing or wobble.
Going towards Karachi the wind direction is from 2 o'clock, or from the front right of the car. So the car keeps going left. You need to have permanent counter-steer. Just turn the steering a little to the right otherwise the wind will gradually blow you in the left track.
Specially when overtaking dump truck (they have only 8-9 ton load so they run at around 90 kph), it is a problem, because of the flat front they are pushing a lot of air to the side, if you attempt overtaking from the left, not only the car is difficult to control, it can overturn because the effect of west wind and the effect of wind pushed to the side by the truck is maximized. One day Bolan came off 2 of its wheels (right hand side in the air), but then stabilized itself due to pure luck and due to quick-minded steering/accelerator manipulation and also due to mid-engine and the engine is also very low to make it stable!
If a bus overtakes Bolan or Bolan overtakes bus then there is the same problem too.
In another case, there was Suzuki Ravi trying to overtake a dump truck. The Ravi had much difficulty overtaking the dump truck, since Ravi and Bolan both are very thin Bolan went between the dump truck and Ravi to overtake both of them! But Bolan did not take into account the wind effect blowing from the front of the dump truck! So the the wind pushed the Bolan 3-feet to the right! But the Ravi was already on the right! But the Ravi did not have any load so it was pushed even more, creating an even bigger space for Bolan!
But a lot of counter-steer is required to keep Bolan in place. Overtaking a truck, Bolan on the right, have to turn the steering too much to the left just to negate the effect of wind. Otherwise the direction of car will change. But if it starts lifting this side in the air then ease a little bit, it will create distance between the truck and Bolan and the wind pressure will be reduced a lot, but you need to have margin on the right for this. If you keep struggling in the same position, then the wind will lift and turn the Bolan turtle.
There is a reason why luxury cars are so heavy, to make the driver more comfortable, to reduce the tiredness which would happen because of continuous steering correction. And to make the overtakes more effortless without thinking all the time which destabilizing effect is going to come in from which side!
Drive very carefully ... it is famous for being unstable, but it is very stable when you drive it ... that's why people drive it like mid-engine RWD racer! But the wind effect can easily destabilise it if you are not extremely alert. Because of the slab-sided body shape.