Upto the 1990s all matatus were nissans hence the term “Nissan matatu”. And they used to ply all city and upcountry routes. All tour vans were also nissans. Then in 2000s toyotas were introduced and these were mainly ex japan mitumbas. So it is wrong to claim that nissans cant do matatu.
https://homelidays.co.ke/wp-content/uploads/2019/11/Tour-Vans-For-Hire-in-Kenya-1.jpg