Birmingham have released new computer generated images of how Alexander Stadium might look if the city is awarded the 2022 Commonwealth Games.
A new permanent seating arrangement of up to 25,000 seats will be increased to 40,000 during the 2022 Commonwealth Games, with flexibility to go higher, bid officials claim.
All athletics and Para athletics disciplines for Birmingham 2022, with the exception of the marathon, which will take place in Birmingham’s city centre, will take place in the Alexander Stadium.
The Stadium will also host the Opening and Closing Ceremonies.
The new images have been released to coincide with the start today of the British Athletics Championships and World Championships Team Trials 2017 at Alexander Stadium.
Niels de Vos, the chief executive of UK Athletics, which are based at Alexander Stadium, is among those to have offered their support to Birmingham's bid.
"Birmingham has an unparalleled track record in staging major sporting events, including international athletics such as the Diamond League at Alexander Stadium," de Vos, a member of the Birmingham 2022 Commonwealth Games Steering Group, said.
"We have seen World, Olympic, Paralympic and Commonwealth champions compete in the stadium and we regularly see youngsters from sports and community clubs participating at a grassroots level.
"The enhanced and refurbished stadium that will result from a Birmingham 2022 Games will help to continue our sport’s legacy and benefit future generations of athletes.
“With the Indoor World Championships returning to Birmingham next year and USA and Jamaica again choosing Birmingham for their training bases, the city’s reputation for having fantastic facilities, being perfectly located and being welcoming hosts is internationally recognised.
"As the 'City of Running' and as home to UK Athletics, I encourage athletes and fans to get behind the Birmingham 2022 Commonwealth Games bid."
The 11-time Paralympic gold medallist Baroness Tanni Grey-Thompson has also come out to back Birmingham.
"I think the Commonwealth Games should come to Birmingham," she said.
"I trained for Sydney  in Birmingham and it’s a really good city that’s passionate about sport.
"It has a lot of great facilities already so you wouldn’t have to build from scratch."
Alexander Stadium is considered a major advantage for Birmingham as their only rival for the English nomination, Liverpool, propose to use a temporary track if they are awarded the Commonwealth Games at Bramley-Moore Dock, the planned new home of Premier League Everton.
Doubts have been raised, however, over their plan to drop in and remove a running track between the end of the 2021-2022 and 2022-2023 football seasons.
Besides Birmingham and Liverpool, Malaysia's capital Kuala Lumpur, host of the 1998 Commonwealth Games, is among the locations to have expressed firm interest in stepping in to replace Durban, stripped of the 2022 Games in March due to a lack of financial guarantees.
Adelaide, Melbourne, Perth and Sydney in Australia have also revealed they may be interested, while Victoria in Canada announced earlier this month that it will bid.
The Commonwealth Games Federation are due to choose a host city in autumn.