Activa 4g, upgrade model of activa 3g not much different in both the scooter except the bs4 engine and continous on headlight, one of the best thing of this scooter is comfort, if u travel more than a 100 km u cannot feel irritated or tired, activa gives a best level of comfort, now all the bikes and scooter of honda comming with HET( Honda Eco Technology) so all bikes and scooter gives more than 60kmpl so no worry about mileage, realibility is very high, also pickup is very good, it ride very smoothly on a road, tyre grip is very good. Overall best scooter, thumbs up?