The Economist (correctly) stated long time ago, that GDP should be yanked, as an economic performance measurement, as it includes not only production (new value created) but services as well.
Take the leasing of a new car, as an example: the only time its value should count is, when the car rolls off the assembly line. The price then (production cost+profit) will be the sole contribution, nothing more.
What comes afterwards, all 5 steps (sale to the wholesaler, then the retailer, then to the leasing company, who in turn will 'sell' it to the retail customer, using the financial backup of a bank, or other source) are factored into the GDP, but do not add any value.
80% of Canada's GDP is generated from services, the rest from production and administration.
If you compare that with another country with a similar GDP total, but 80% of it comes from production and only 20% from services, which country is performing better?