'Where's your Ferrari?' Tyga makes a point by taking Kylie Jenner for a spin in her birthday gift... as he hits out at ex Blac Chyna

It was a very expensive gift.

And Kylie Jenner appeared to be genuinely blown away when boyfriend Tyga gave her a $260,000 Ferrari 458 convertible for her 18th birthday at a family party at Bootsy Bellows in West Hollywood on August 10.

But it seems the 25-year-old rapper got mad after rumours started circulating suggesting that he had leased the super car rather than buying it outright  - and he's laying the blame on ex-fiancée Blac Chyna, according to TMZ.

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He doesn't care: On Sunday, Tyga took girlfriend Kylie Jenner out for a ride in his birthday gift to her, a $260,000 Ferrari 458 convertible, amid rumours that he leased the super car rather than buying if outright 

He doesn't care: On Sunday, Tyga took girlfriend Kylie Jenner out for a ride in his birthday gift to her, a $260,000 Ferrari 458 convertible, amid rumours that he leased the super car rather than buying if outright 

On Sunday he made it a point to take his love out for a spin in her pricey gift, pumping petrol into the thirsty beast at a station in the semi-rural Los Angeles neighbourhood of Calabasas.

 Kylie ducked her head low in an attempt to avoid being seen.

The day before he laid down the gauntlet, posting a snap of himself on Instagram decked out in heavy gold chains, captioned: 'When the hating don't work they start telling lies. #WhereYoFerrariTho?' 

Gas guzzler: The 25-year-old filled up the thirsty beast at a station in the semi-rural Los Angeles neighbourhood of Calabasas

Gas guzzler: The 25-year-old filled up the thirsty beast at a station in the semi-rural Los Angeles neighbourhood of Calabasas

Stocking up: Kylie and Tyga got some groceries later that day

Stocking up: Kylie and Tyga got some groceries later that day

Kick into gear with adidas

Kylie Jenner took a break from her revealing outfits and stepped out in some casual gym gear along side her boo.

The reality star showed off her trim figure in her workout gear that consisted of a white tee and black tights along with a pair of adidas sneakers for good measure.

We're not surprised to see the blondie in these trainers as her brother in law, Kanye West, works with adidas. The sleek design and signature three stripes make them instantly recognizable - and perfect for the gym or running around town.

Click right to buy Kylie's shoes at adidas. Or head south for sporty alternatives from your favorite athletic brands.

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Getting his message across: The rapper addressed rumours that he had leased the convertible  in an Instagram he posted on Saturday, saying, 'When the hating don't work they start telling lies. #WhereYoFerrariTho?'

Getting his message across: The rapper addressed rumours that he had leased the convertible in an Instagram he posted on Saturday, saying, 'When the hating don't work they start telling lies. #WhereYoFerrariTho?'

Blac's best friend Amber Rose quickly jumped to her defense, shooting back on Instagam: 'She don't need a Ferrari she can Drive mine #BFFGoals,' with a snap of her pink car. 

Tyga replied in double quick time with a picture of his pimped out Rolls-Royce, saying: 'We drive our own whips peanut head #GoldPhantoms #LastKings.' 

So far 27-year-old Blac, the mother of Tyga's two-year-old son King Cairo, has not responded on social media. 

Pump man: Tyga did all the heavy lifting as Kylie waited for him

Pump man: Tyga did all the heavy lifting as Kylie waited for him

Nice ride: The super car certainly made an impression on the rode

Nice ride: The super car certainly made an impression on the rode

She's got her back: Amber Rose, the best friend of Tyga's ex-fiancée Blac Chyna, took his post as a dig at her pal and flashed back, 'She don't need a Ferrari she can drive mine' with a snap of her pink machine

She's got her back: Amber Rose, the best friend of Tyga's ex-fiancée Blac Chyna, took his post as a dig at her pal and flashed back, 'She don't need a Ferrari she can drive mine' with a snap of her pink machine

Having the last word: Tyga replied in double quick time with a picture of his pimped out Rolls-Royce, saying, 'We drive our own whips peanut head #GoldPhantoms #LastKings,'

Having the last word: Tyga replied in double quick time with a picture of his pimped out Rolls-Royce, saying, 'We drive our own whips peanut head #GoldPhantoms #LastKings,'

 The hip-hop model, whose real name is Angela Renée White, will likely need her best friend's support more than ever if the lastest rumours surrounding Tyga and Kylie turn out to be true.

On Friday, HollywoodLife reported that the pair has secretly got engaged and Tyga, real name Michael Stevenson, sealed the deal with the blingy diamond ring she's wearing on her left hand 

'They aren’t ready to tell everyone, so right now they’re keeping it a secret from most people,' a source dished to the website. 

Best friends forever: Blac Chyna, left, and Amber Rose wore matching outfits for the MTV Video Music Awards at Microsoft Theater in Los Angeles on August 30

Best friends forever: Blac Chyna, left, and Amber Rose wore matching outfits for the MTV Video Music Awards at Microsoft Theater in Los Angeles on August 30

New rumour: Kylie and Tyga are reportedly engaged after the 18-year-old wore a crystal encrusted dress and flashed a very blingy ring on her left hand at her birthday party in August

New rumour: Kylie and Tyga are reportedly engaged after the 18-year-old wore a crystal encrusted dress and flashed a very blingy ring on her left hand at her birthday party in August

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