Not long after the birth of fuel-powered trains, the development of fuel-powered cars was put on the agenda, but the roads in Datang were basically mud roads, except for major cities, other places were basically unable to drive cars, so Wang Haoran thought of asphalt roads. With the widespread use of gasoline and kerosene, oil extraction has finally become a bit large-scale, and those leftover slags can just be used to build asphalt roads.

One day, Wang Haoran entered the palace and proposed to Li Shimin to build an asphalt road, but in fact, he did not have much hope for this.

As a result, as Wang Haoran thought, it is useless to build asphalt roads at this time, even if Wang Haoran can really make the so-called car in the future, how much can it be made? Hundreds? Or a few thousand? Do you have to go to great lengths to build roads for this? This is clearly not cost-effective.

Wang Haoran's purpose is not here, and then said: "What the imperial brother said is not unreasonable, but the younger brother still wants to lay an asphalt road from Chang'an to Zhongcheng as a pilot, if it is successful, then maybe there is no need for the imperial court to fund, and those businessmen will also pay for the asphalt road out of their own pockets." ”

"What does it mean to be successful?" Li Shimin felt the smell of copper emanating from Wang Haoran's proposal.

"The construction of asphalt roads is very expensive, and it is impossible for the courtiers to do it without any profit. Therefore, the courtier implored the imperial brother to allow the courtier's brother to charge a certain fee for the vehicles driving on the road to make up for the cost of repairing the road. ”

"Haha...... Surely the fee charged is too high, right? Otherwise, others might as well take the train! Just rely on that little income, you recover the cost first, I'm afraid you won't be able to get it back in your life. ”

"That's true, but the younger brother doesn't expect to recover all the costs, just reduce some of the losses of the younger brother." Wang Haoran verbally agreed.

"Then why do you have to build some asphalt roads? Isn't it redundant to carry people and goods, you can use trains, and then build roads? ”

"However, the car that my brother is studying now needs a flat road to drive, and the current road is basically a mud road with two wheel prints, and you can't drive a car at all." Wang Haoran said helplessly, "If you don't develop a car, my brother is very unwilling, and his life is just a few decades, if he has a good idea and doesn't do it, wouldn't it be a pity?" ”

Li Shimin felt that Wang Haoran seemed to have gone crazy with his research, and saw that he was willing to spend a huge amount of money to do this loss-making business just for a matter of heart, so he agreed.

Wang Haoran, who walked out of the palace, immediately shook off the bitter gourd face just now, road construction fees are as profitable as robbery, although it is not profitable now, but what about five years later? What about ten years from now? Or much later? When there are more vehicles, Wang Haoran naturally does not have to worry about not recovering the cost. What's more, the asphalt residue in his oil field can be taken by himself, and it doesn't cost too much money.

The improvement of power stations and electric lights is no longer in a hurry, Wang Haoran asked Xiaoyu and them to start researching motors, of course, the theoretical knowledge required still has to teach them, although Wang Haoran does not know much, but if there is a research direction, it can save a lot of time.

With fuel power, it was not so difficult to make a car, and it was probably a little more than a year and less than two years before the first car was born.

Wang Haoran had already received a notice that the car could be assembled today, so he rushed to the factory early this morning, and Li Liushuang and Xiaoyu also came over to see the freshness.

The assembled car is being placed in the courtyard, which resembles the dump trucks of later generations, except that there is no windshield. There are two seats in the front and a platform that can accommodate more than a dozen people in the back, which is used to carry weight in experiments to test the power size.

"Little master, do you want to try it first?" Chen Jun proposed.

"Okay! When it comes to driving this car, you may not be as good as me! Wang Haoran did not shirk.

"I'm going to take a ride and feel it too!" Xiao Yu saw that there was still a seat on the car, so she hurriedly stepped forward and sat down on the bus.

Wang Haoran did not object, this is not a dangerous thing, he borrowed a car from his classmates in later generations to ask the goddess for a ride, the car skills are needless to say, and the design of this car is the same as that of later generations, brakes, accelerators, and clutches.

Wang Haoran first went around the compound a few times, and when everyone saw that the car could operate successfully, they cheered, and directly ignored the buzzing power head. Wang Haoran felt that it was not enough, and thought that the road into the city here was barely able to drive, so he decided to drive the car into the city for a ride, and shouted to everyone: "Who else wants to get in the car?" I'll take you into town! ”

Everyone was eager to try, but they didn't dare to get into the car, the four wives of the little young master are here, why can't they be their turn?

Xie Qingyou could think of these people's thoughts, if Wang Haoran drove the people from this institute into the city, it wouldn't be too particular, but if he took their wives and concubines, then he couldn't be sloppy, so he said: "The concubine won't go, Xiaoyu, you also sit in the car, hurry down and let the princess sit." ”

"No need, Xiaoyu is having fun, just let her sit a little longer." Although Li Liushuang is a princess, she is still very well-behaved in front of Wang Haoran.

Xiaoyu was reluctant, but she still came down, after all, this sister-in-law is a princess of the Tang Dynasty, and her treatment involves the relationship between the royal family and her brother.

"Sister-in-law, you can go up!" Xiaoyu pushed Li Liushuang into the car.

Wang Haoran was just a whim at first, but he didn't expect Xie Qingyou to think so carefully for him, and he was very happy. When Li Liushuang got into the car, Wang Haoran called Chen Jun and the others into the car to enter the city together, so as to feel where there were still defects in the car so that they could improve.

There were some bumps on the road, but fortunately, there were still some flat places on the side of the road, Wang Haoran drove the car, the wheels on one side were pressed on the side of the road, and the wheels on the other side were pressed in the middle of the road, avoiding the bumps on the road, so the bumps were not too big.

The guards guarding the city gate saw a behemoth clattering towards this side from a distance, and hurriedly closed the city gate and entered a defensive state.

"What are you doing! Put the gun down! Wang Haoran stopped outside the city gate, and rebuked angrily without waiting for the guards to ask.

Only then did these guards find out that the person who came was the Lord Protector, and the princess of Nanchang was sitting next to them, so they hurriedly put down their guns and stepped forward to apologize. He had already heard that the factory was studying a car that did not use a track, and it should be the behemoth in front of him, presumably the Duke of Huguo wanted to drive into the city for the emperor to see, so he didn't dare to stop it, opened the city gate and let Wang Haoran drive in.

The people inside the city gate had already heard the clicking sound outside the city gate, and the sudden closing of the city gate made them even more curious, so they kept looking at the city gate. As soon as the city gate opened, a behemoth drove in, and sitting on it were the famous Protector and Princess Nanchang, and behind them was the elite research team under the Protector. It was not news that Wang Haoran was researching cars for a long time, so they immediately rushed over to see the strangeness.