Car on lease or on financing?

Hello, I am Abdul Haseeb Shoaib and I live in Canada. I am planning to get a new car and thus I am interested in knowing if is it Halal or not. Firstly there is an option of financing a car but when I tell the dealer that I am a Muslim and I don't want to take it on the interest he said that it won't be possible but what we can do is we can calculate all the interest payment and you pay a downpayment for that. Then there would be only car installments without interest left. Eventually, I am paying so is it Halal or not? Secondly, one dealer told me that he is also a Muslim and the Islamic way is to lease a car though it has interest included in it it is the Islamic way as we are renting a car. So I would like to ask is it right is any of these are Halal or both are Halal or there is only Halal cash option?