The Honda GP line made in ChinaDon Honda actually sells a clone of itself, made outside of Honda factories and it is white.
OK the GP stands for "general purpose that destroys my hopes and vision of a Gran Prix 12,000 rpm 200 hp / liter engine for $100.00.found it:
http://www.honda-engines-eu.com/overview-press-releases/-/asset_publisher/9PzdeZQoAtaf/content/honda-announces-the-european-launch-of-the-gp-range-of-general-purpose-engines;jsessionid=151A1F25F6B482C0EA44CC7D7FECC2DA?redirect=http://www.honda-engines-eu.com/overview-press-releases;jsessionid=151A1F25F6B482C0EA44CC7D7FECC2DA?p_p_id=101_INSTANCE_9PzdeZQoAtaf&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-4&p_p_col_pos=2&p_p_col_count=3
and
http://www.honda-engines-eu.com/view-engine-model-list?c=60
and
https://www.smallenginewarehouse.com.au/products/honda-gp200-6-5hp-petrol-engine-gp-series