Valtteri Bottas doubts he'll ever take a leaf out Fernando Alonso's book of racing and venture out to other motorsport series while racing in F1.
Alonso's 'Triple Crown' ambitions took the McLaren driver to Indianapolis last year, and have set him on the road to Le Mans with Toyota this season.
Bottas however feels the intensity and workload of Grand Prix racing requires an exclusive focus.
"If he feels he has the time and energy for that, it's no issue," said the Mercedes driver who conquered his first three F1 wins in 2017.
"Maybe he likes to try new things because he's been in Formula1 for a long time," he told Ilta Sanomat newspaper.
"But at this point I don't think I would like to start mixing other series with the Formula 1 season. I'd rather focus fully on F1," Bottas added.
To Bottas' point, the F1 calendar has already swelled to 21 races for 2018, and Liberty Media has talked about adding even more races in the near future.
"We have 21 races now but 25 is definitely the upper limit," said the Finn.
"It's going to be difficult on the logistics side to do that. There are the people to think about and costs will also get a lot higher if the teams have to get more people in."
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
