Vehicles have to be under 8 years.
Vehicles have to be Right Hand Drive.
Vehicles need to be inspected by Japan Export Vehicle Inspection Center (JEVIC).
http://www.jevic.co.jp/jevic_english/index.html
TAX
Import duty : CIF price x 25%
Excise duty : (CIF price + Import duty) x 20%
VAT : (CIF price + Import duty + Excise duty) x 16%
Kenya Revenue Authority http://www.revenue.go.ke/
Kenya Embassy http://www.kenyarep-jp.com/en/index.html