I believe the PPL should be year-round journey, simply because of weather and differences between 4 seasons. It is better to experience bad weather with the instructor, than without.
Alternatively, you could expedite training by allowing at least one or two days between flying days, therefore ~60 hours(1 hr per day) can be done in about 6 months.
At the end, it all depends when "it clicks" with you, which usually happens around 60 hours. However to be fully relaxed (as in driving a car), it takes between 150-250 hours.
I would stay away from anything "instant".