Motivation Letter for an Exchange Semester

I want to apply for an exchange semester at an American university. The first step in the application process is to write a motivation letter to my own university. I have given this a lot of thought and I was wondering if someone could give me some feedback on this letter. I would highly appreciate it!
Dear Sir or Madam
The ... University is one of the leading management universities in the world. Therefore, my decision to choose this extraordinary university - with all the opportunities implied - was obvious. What is more, the exchange programs offered by this university were one decisive fact for choosing this university and so I am pleased to address my application for University of ABC a for the summer semester 20.. to you now.
For me personally, doing an exchange semester is an integral part of my studies. I would like to seize this invaluable opportunity which is an incredible chance to broaden my horizon and develop my personality. I am looking forward to meeting people from all over the world, getting to know their beliefs and opinions and learning to deal with differences . If nothing else, the deeper understanding of the US American culture I would gain from this exchange semester would certainly be an invaluable asset when it comes to starting a career in the US/ improve my post-graduate employment prospects in the US.
Another important reason for applying to an American university is that I want to improve my command of English so that I am able to successfully complete an English-speaking master's program. What is more, I find it particularly interesting to get an insight into the way American professors teach and how they deal with study-related topics.
I chose to apply for University of ABC because of its outstanding reputation and its high number of international students. The diverse community is a true reflection of its special location in the heart of a dynamic world center. Thus, I believe ABC is the ideal place for people that want to study in a multicultural environment. Aside from this, I am absolutely fascinated by ABC's art and cultural scene and I believe that studying abroad in one of the world's most important financial centers will be very beneficial to my future career and will improve my post-graduate employment prospects.
It would be my pleasure to represent the ... University at the University of ABC during the summer term 20.. . I regard the exchange term not only as a great chance to enlarge my professional knowledge, but also to enrich my abilities in the social and intercultural fields. Thus, I would highly appreciate the opportunity to be invited for a personal interview.
Sincerely yours,

I hope someone has time to help me,
thanks in advance
Manuel