السيارة برتقالية.

A natural Levantine-style pronunciation is:

es-sayyāra burtuqāliyye

A few helpful notes:

• السيارة is pronounced es-sayyāra, not al-sayyāra, because the ل in ال blends into the س.
• برتقالية ends with -iyye in Levantine pronunciation.
• In everyday speech, some vowels may get shortened or reduced, but es-sayyāra burtuqāliyye is a good solid learner pronunciation.

In Arabic, the present tense often does not use a word for is/am/are.

So Arabic simply says:

• السيارة برتقالية
• literally: the car orange

This is completely normal. Arabic calls this a nominal sentence.

If you wanted other tenses, then a verb can appear, for example in the past:

• السيارة كانت برتقالية = the car was orange

In Levantine, leaving out is in the present is one of the most basic sentence patterns.

Because in Arabic, adjectives normally come after the noun they describe.

So the order is:

• السيارة = the car
• برتقالية = orange

This is true both in full noun phrases and in simple descriptive sentences.

Compare:

• السيارة البرتقالية = the orange car
• السيارة برتقالية = the car is orange

So Arabic often uses noun + adjective, not adjective + noun like English.

Because سيارة is a feminine noun, and the adjective has to agree with it.

So:

• masculine: برتقالي
• feminine: برتقالية

Since سيارة is feminine, you say:

• السيارة برتقالية

If the noun were masculine, you would use برتقالي instead.

This kind of agreement is very important in Arabic:

• gender agreement
• number agreement
• usually definiteness agreement too, depending on the structure

Because this sentence is saying that the car has the quality orange. The second word is the predicate, not part of a single the + adjective + noun phrase.

So:

• السيارة برتقالية = the car is orange

But if you say:

• السيارة البرتقالية

that means:

• the orange car

That is a noun phrase, not a full sentence.

So this is a very useful contrast:

• السيارة برتقالية = sentence
• السيارة البرتقالية = noun phrase

This is because س is a sun letter.

When ال comes before a sun letter, the ل is not pronounced clearly. Instead, the next consonant gets emphasized.

So:

• written: السيارة
• pronounced: es-sayyāra

You will hear this with many words beginning with sun letters. The spelling usually stays the same, but the pronunciation changes.

It is related to برتقال, which means orange as the fruit.

From that, Arabic forms the adjective:

• برتقالي = orange-colored (masculine)
• برتقالية = orange-colored (feminine)

So yes, the color term comes from the fruit name, just as in English.

Not in Levantine.

In everyday Levantine Arabic, learners normally do not pronounce case endings such as -u, -a, or -in/-un. So the sentence is simply said as:

• السيارة برتقالية

In fully formal Standard Arabic grammar, the sentence could be analyzed with case endings, but that is not how ordinary Levantine speech works.

So for Levantine, it is perfectly fine to focus on:

• the words
• the agreement
• the pronunciation

and ignore case endings.

A very common Levantine way is to use مش:

• السيارة مش برتقالية

That means the car is not orange.

This is one of the most useful patterns in Levantine:

• X مش Y

Examples:

• البيت كبير = the house is big
• البيت مش كبير = the house is not big

So with your sentence:

• السيارة برتقالية
• السيارة مش برتقالية

Yes. The adjective must match the noun.

For example:

• السيارة برتقالية — feminine singular
• الكتاب برتقالي — masculine singular
• السيارات برتقالية — plural non-human nouns often take feminine singular agreement in Arabic

So when learning adjectives, it is best to learn both forms:

• برتقالي
• برتقالية

That will help you describe many different nouns correctly.