In autostrada non mi piace sorpassare i camion.

Because piacere works differently from English to like.

Italian uses it more like to be pleasing to someone:

• mi piace = it is pleasing to me
• literally: to me, it pleases

So in non mi piace sorpassare i camion, the thing that is pleasing/not pleasing is sorpassare i camion (overtaking trucks), and mi means to me.

That is why Italian says:

• Mi piace la pizza = I like pizza
• literally: Pizza is pleasing to me

Not:

• Io piaccio la pizza ❌

Because piacere does not usually work with the liker as the subject.

Mi means to me.

It is an indirect object pronoun, and with piacere it shows the person who experiences the liking or dislike.

So:

• mi piace = I like
• literally: it pleases me / to me it is pleasing

Other forms are:

• ti piace = you like
• gli piace = he likes / to him it is pleasing
• le piace = she likes / to her it is pleasing
• ci piace = we like
• vi piace = you all like
• gli piace = they like / to them it is pleasing

In Italian, non is the normal word used to make a sentence negative, and it usually goes before the verb.

So:

• mi piace = I like
• non mi piace = I don’t like

In this sentence:

• In autostrada non mi piace sorpassare i camion
• On the motorway, I don’t like overtaking trucks

The negative applies to piace, not to sorpassare.

Because after piace, Italian often uses an infinitive verb to express liking or not liking an activity.

So:

• Mi piace leggere = I like reading / I like to read
• Non mi piace guidare = I don’t like driving
• Non mi piace sorpassare i camion = I don’t like overtaking trucks

Here, sorpassare is the infinitive, meaning to overtake / to pass.

If you used sorpasso, that would be a noun:

• il sorpasso = the overtake / the act of passing

So the structure here is:

• non mi piace + infinitive

Yes — camion is one of those Italian nouns that usually stays unchanged in the plural.

So:

• il camion = the truck
• i camion = the trucks

The noun itself does not change, but the article does:

• singular: il
• plural: i

That is how you can tell whether it means one truck or more than one.

Because in autostrada is a normal idiomatic expression meaning on the motorway / on the highway.

Italian often uses certain place expressions without an article, especially when talking about being in or on a type of place in a general way:

• in città = in town
• in ufficio = in the office / at work
• in macchina = in the car
• in autostrada = on the motorway

So in autostrada is the natural choice here.

That is just a difference between the two languages.

English often uses on for roads and transport routes:

• on the motorway
• on the road

Italian commonly uses in with autostrada:

• in autostrada

You should not translate the preposition word-for-word. It is better to learn the whole expression:

• in autostrada = on the motorway

The sentence is:

• In autostrada non mi piace sorpassare i camion.

A natural breakdown is:

• In autostrada = on the motorway
• non mi piace = I don’t like
• sorpassare i camion = overtaking trucks

This word order is very natural. Italian often puts a place expression at the beginning for context.

You could also say:

• Non mi piace sorpassare i camion in autostrada.

That is also correct, but it places the location later in the sentence. Both are fine; the original version emphasizes the setting first.

Sorpassare is the most specific and natural verb here for traffic situations. It means to overtake or to pass another vehicle.

• sorpassare un camion = to overtake a truck

Superare can sometimes mean to pass or to get past, but it is broader and can also mean:

• to exceed
• to overcome
• to get past

So in driving contexts, sorpassare is usually the clearest choice.

Passare by itself often just means to pass, to go by, or to spend time, so it is less precise here.

It can correspond to both in English.

So:

• Mi piace leggere = I like to read / I like reading
• Non mi piace sorpassare i camion = I don’t like to overtake trucks / I don’t like overtaking trucks

English has two common ways to express this, but Italian simply uses:

• piacere + infinitive

No. Here the plural noun i camion is not what controls the verb.

The thing that piace is the whole action:

• sorpassare i camion = overtaking trucks

An infinitive phrase like this usually takes piace in the singular:

• Mi piace viaggiare
• Non mi piace aspettare
• Non mi piace sorpassare i camion

You would use piacciono when the thing liked is a plural noun:

• Mi piacciono i camion = I like trucks
• Mi piacciono i libri = I like books

But here it is an action, not a plural subject noun.

No. Autostrada specifically means a major fast road such as a motorway, freeway, or highway, depending on the variety of English.

Compare:

• strada = road / street
• autostrada = motorway / freeway / highway

So in autostrada gives a specific driving context: the speaker is talking about overtaking trucks on a high-speed road, not just on any street.