The question is not about Egbert contacting Loewy first.
First contact with Loewy was sometime in January, 1961.
Loewy sent a letter to Egbert dated February 2, 1961. In the letter to Egbert he included a few clippings and photographs that he thought Egbert would find interesting.
On March 9, 1961 Egbert made a call to Loewy to talk about a new sports car.