Specs, fuel ecomony, MPG, dimensions of all Hafei models

Hafei Princip - Technical Specs, Fuel economy, Dimensions Princip Hafei Saibao - Technical Specs, Fuel economy, Dimensions Saibao Hafei Sigma - Technical Specs, Fuel economy, Dimensions Sigma Hafei Simbo - Technical Specs, Fuel economy, Dimensions Simbo