Why does the Torah refer to the gift of wagons as "Korbanam"?
Ramban #1: Because the Nesi'im brought them for the needs of the Korbanos. 1
Ramban #2: Because they contained the Korbanos that the Pasuk lists later in the Parshah. 2
Ramban: Similar to "Vanakrev Es Korban Hashem ... " ( 31:50), i.e. a Korban to Bedek ha'Bayis.
What are "Eglos Tzav"?
Rashi #1 (citing the Sifri), Targum Onkelos and Targum Yonasan #1: "Eglos Tzav" are covered wagons.
Rashi #2: It means nice-looking wagons. 1
Rashi #3 (in Yeshayah, 66:20) and Targum Yonasan #2: It means wagons well rigged-out, with walls and a cover.
Ramban #1: "Eglos Tzav" means 'large wagons'.
Ramban #2: It means 'full wagons'. 2
Rashbam: Wagons that were ready to go to war and travel long distances. 3
Why did the Nesi'im donate a wagon between two Nesi'im?
Seforno: It was a sign of the camaraderie that existed between them, rendering them worthy of the Shechinah resting among them. 1
What are the implications of "Vayakrivu osam Lifnei ha'Mishkan"?
Rashi: It implies that they brought their gift in front of the Mishkan, but Moshe did not accept it, until Hashem instructed him to do so - as stated in the following Pesukim.
What prompted the Nesi'im to come forward with their gift in honor of the Mishkan?