The deal could provide a much-needed boost for fund manager Neil Woodford, who suspended his flagship fund earlier this month. The manager owns 7.15% of BCA, according to Refinitiv Eikon data.

TDR Capital's offer of 243 pence per share, a premium of about 25% to BCA's closing price on June 19, comes after BCA said last Thursday the two companies were in advanced talks over a potential deal.

TDR said it had secured support for the offer from 44% of BCA's shareholders, including letters of intent to vote in favour from Woodford Investment Management, Invesco Asset Management and Axa.

Shares in BCA were up 2.9% at 242 pence in early trading on Wednesday.

The offer comes nearly a year after BCA rejected a takeover proposal from another private equity group Apax Partners, saying it undervalued the company.

BCA Marketplace, which sold more than one million cars last year, provides a range of services including vehicle collections and deliveries, inspection checks, customs management, storage, refurbishment, vehicle preparation, and financing.

In BCA's financial results for the year to March 31, announced separately, the company increased revenues by a quarter to just over 3 billion pounds, while operating profits grew 14% to 100.2 million pounds.

(Reporting by Shariq Khan in Bengaluru and Iain Withers in London; Editing by Sinead Cruise and Jane Merriman)