I shot extensive video of a Mercedes auction and of a vintage Mercedes road rally. I have edited it down to about 60 minutes.

How do I post videos online? Someone told me I have to buy space or find someone to design a website for this purpose.

you need webspace. not a website...

Depending on the size of the video, is depending on how much web space you need.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U