For reference, check out Renault (http://markets.ft.com/research/Markets/Tearsheets/Summary?s=...), Fiat (http://markets.ft.com/research/Markets/Tearsheets/Summary?s=...) or Peugeot (http://markets.ft.com/research/Markets/Tearsheets/Summary?s=...)
Market-cap wise, Tesla is approaching the size of Renault ($25B) and larger than Fiat and Peugeot combined ($13B)