I've actually proven earlier that TW3's map was pretty small. It only seemed big because you could traverse it only either on foot or by horse.yeah, but I imagined something like 70% of TW3' extension. Here it SEEMS smaller than just novigrad+velen. It can't take 3 minutes to navigate the whole map by car.
Cyberpunk's world will be bigger than TW3's.
I've also proven earlier that the city will be traversable in 4-5 minutes at normal gamer speed (e.g. pretty fast) and 3.5-4 minutes at super-high (basically max?) speed.