I agree that precision guided rounds would be the best answer for attacking individual vehicles - but if they have pre-registered targets on a road and the vehicles are bunched together, they have a better than even chance of nailing a vehicle or two.
I have seen a cluster of M-198 155mm craters out in the desert that didn't measure more that 10 meters across, fired by a single howitzer, same data (and well-seated trails) fired at 11,000 meters range and it astounded me with that great precision. That's less than one mil in deviation for range and deflection dispersion!
Artillery can be very precise indeed.
"but if they have pre-registered targets, on a road and the vehicles are bunched together they have a better than even chance of nailing a vehicle or two."
That's what the deal was at the pontoon bridge crossing I heard, they had the probable crossings on the river already pre-targeted and the Russians lost at least 73 vehicles! Thanks for the input…