Game Add-on for Grant Theft Auto, San Andreas 2

Later an updated model is released together with 2 other models. Only until this time, I have possessed elementary modeling skills. The three articulated bus models from left to right are BK6141, BK670 Gen2, BK670 Gen1, built by Beijing JingHua Bus Pte. Ltd. China.
Although they are build only from 2-D photos and that all the dimensions are estimated by me, please feel free to compare with the real-world one below. hahas.

Some other pictures of the model BK6141.