Complete the following sentence: In his debut full season at McLaren, Vandoorne established himself as a considerable rookie next to veteran F1 Champion, Fernando Alonso. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ The key issues lay in the reliability and performance of the car which resulted in 1 DNS and 5 DNFs throughout the 20 race season. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>
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