The sound sounded very laborious. Although it was still far away, Xu Yubo could tell that it was the sound made by the single-cylinder diesel engine he designed when it was working at maximum power, and there were people surrounding a piece of mud in the distance.

A group of people, including workers, technicians, and even photographers with cameras.

"1.5 tons!"

There was a roar from the crowd. It was 1.5 tons. The maximum load of the Ford truck was only 1.5 tons. Pushing through the crowd crowding around, Xu Yubo saw only one truck that was not even painted with protection.

The painted tricycle was now covered with mud, and even the driver's body was covered with mud. Amidst the roar of the single-cylinder diesel engine, the tricycle struggled in the mud and moved forward hard, while a car next to it

The Ford truck was already lying in the mud. The rear wheels of the Ford truck were slipping and it was obviously already lying on the ground. Although the tricycle was slipping, it was still moving forward hard. Finally, accompanied by a burst of cheers, the three-wheeled vehicle

Rush onto the asphalt road in front of the dirt field.

"Be good..."

The driver, who was covered in mud, jumped off the tricycle and started shouting.

"Grandma, this guy, even though he doesn't look very good, is very powerful, almost like a mountain mule! I guess he can still lift a few hundred more kilograms!"

"Xiao Xu!"

Suddenly a shout came to Xu Yubo's ears. Xu Yubo just turned his head and listened to someone shouting loudly.

"This is Engineer Xu who designed the mountain mule!"

Amidst the shouts of congratulations, Xu Yubo felt dizzy. Looking at the humble tricycle, he knew that he had succeeded and successfully designed a simple and practical car.

…
Chapter completed!