What was Juan Pablo Montoya's driving style?
It was an Aggressive Oversteer driving style. This is why.
Juan Pablo Montoya was known for being an undoubtedly fast F1 driver. His early career in karting and Formula cars is when he crafted his style to be aggressive. Upon competing in the Vauxhall Formula Lotuses, he was taught by Sir Jackie Stewart to drive smoother. This influenced his driving heavily, as he refined his style into being semi-smooth yet active. What this means is that he was aggressive into corners, almost four-wheel drifting the cars. However, he winded on steering smoothly mid-corner to balance the car. However, on exit, he was visibly aggressive with the steering. This fusion of smooth and aggressive steering inputs was ultimately fast, as he could get the most out of the car.