Can't decide what to buy in Lazada.com.ph - Go kart or Sentinel Prime?

It its a toy or a ride on toy for my son... ano mas ok?

this ??
http://www.lazada.com.ph/Chien-Ti-Go-Kart-Red-28358.html#

or this?

http://www.lazada.com.ph/Transformers%3A-Dark-of-the-Moon---Leader-Class-SENTINEL-PRIME----action-figure-31436.html

I spend my hours in browsing the catalog of Lazada.com.ph 

I'll wait next week if ever they have more toys coming in