I don't really understand the differences between the following sentences.

• 彼は新しい車をほしがっている。

• 彼は新しい車をほしそうだ。

In both sentences, the speakers made conjectures based on the sign that the third person (彼) is showing.

#Question

1. What is the difference between the 2 sentences above?

2. Can I rewrite the second one as 彼は新しい車をほしがっていそうだ。Is it redundant?

I don't really understand the differences between the following sentences.

• 彼は新しい車をほしがっている。

• 彼は新しい車をほしそうだ。

In both sentences, the speakers made conjectures based on the sign that the third person (彼) is showing.

Question

1. What is the difference between the 2 sentences above?

2. Can I rewrite the second one as 彼は新しい車をほしがっていそうだ。Is it redundant?